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Po

pu

lar

Po

sts

15

Tip

s to

Ch

ea

t a

t M

CQ

s in

II

T J

EE

: G

ue

ssin

g Y

ou

r W

ay

to

th

e I

ITs

About

a d

ecad

e a

go, II

T J

EE

pre

para

tion w

as for

stu

dents

who w

ere

in C

lass 1

1 a

nd 1

2. A

few

sta

rted e

arly a

nd

co

uld

be found

withIIT

JE

E s

ylla

bus a

nd b

ooks r

ight fr

om

Cla

ss 9

.

Then s

tart

ed F

ou

ndation P

rogra

ms for

JE

E for

stu

dents

fro

m

Cla

ss 6

onw

ard

s.

How

young

are

we c

atc

hin

g them

th

ese d

ays? A

nyw

ay, le

t

me

com

e to the p

oin

t.

I am

not go

ing to talk

ab

out 14 lakh a

pplic

ants

try

ing

out fo

r

JE

E M

ain

or

the

alle

ged 2

% s

uccess r

ate

of stu

den

ts in IIT

JE

E m

akin

g it one o

f th

e toughte

st and m

ost com

petitive

exam

s o

f th

e w

orld. I w

as n

ever

go

od in s

tudie

s a

nd n

eve

r

follo

wed a

ll th

e s

ugge

ste

d textb

ooks –

H.C

. V

erm

a, Lone

y,

or

M.L

. K

ha

nna. S

o, excuse

me if I can

no

t a

ctu

all

y o

ffe

r yo

u

an

y ‘stu

dy t

ips’.

I w

as the

‘o

ther’ type

of stu

dent – o

ne w

ho b

unked m

ost of

my c

lasses in C

lass X

I a

nd X

II, had a

ll th

e fun, and just m

ade

som

e s

ensib

le g

uesses to g

et in

to the IIT

s.

Th

e T

ruth

of

the

En

gin

ee

rin

g

En

tra

nc

e E

xa

ms

Tru

th #

1

th

IIT

-JE

E

20

15

: B

est

refe

ren

ce

bo

ok

s fo

r P

hy

sics

,

Ch

em

istr

y a

nd

Ma

ths

1

�

IIT

AN

D K

OT

A

Pag

e 1 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

All

the e

ngin

eering e

xam

s in Ind

ia h

ave o

bje

ctive, m

ultip

le-

choic

e q

uestions (

MC

Qs)

with fou

r answ

ers

to c

hoose fro

m.

You h

ave to just circle

the c

orr

ect bubble

.

No

bo

dy c

are

s h

ow

yo

u d

o it

– w

heth

er

you a

ctu

ally

unders

tan

d c

oncepts

, cheat your

way thro

ugh the e

xam

or

just gu

ess the a

nsw

ers

and the

y turn

out to

be c

orr

ect.

Tru

th #

2

In J

EE

Main

, JE

E A

dvanced a

nd B

ITS

AT

, th

ere

is a

devil

calle

d N

eg

ati

ve

Mark

ing

to d

iscou

rage

blin

d g

uessin

g. B

ut

sensib

le g

uessin

g c

an h

elp

you g

et th

e b

est of it.

If y

ou

don’t k

now

th

e c

orr

ect a

nsw

er,

sensib

le g

uessin

g c

an

help

you e

limin

ate

all

the w

rong a

nsw

ers

and

gain

mark

s.

Tru

th #

3

Belie

ve it or

not, in a

ll m

ajo

r exam

s, an

sw

ers

are

eq

ually

dis

trib

ute

d a

mo

ng

all t

he f

ou

r o

pti

on

s: a, b, c a

nd d

. It

me

ans that 25%

of

answ

ers

have to

be ‘a’, 2

5%

will

be

‘b’,

25%

will

be ‘c’ a

nd 2

5%

will

be ‘d’. T

his

is d

one to m

ake s

ure

tha

t stu

den

ts d

o n

ot g

et m

ark

s m

ere

ly b

ecause o

f pro

babili

ty.

Ma

rkin

g s

chem

e o

f th

e e

xam

s g

ive

s y

ou +

3 m

ark

s for

all

corr

ects

answ

er

and -

1 m

ark

for

all

incorr

ect answ

ers

.

It m

eans that

if y

ou o

nly

mark

‘a’ fo

r all

the q

uestions –

you

will

have a

t le

ast

25%

corr

ect answ

ers

. R

est of th

e 7

5%

answ

ers

will

be incorr

ect. H

ence, g

oin

g b

y the form

ula

be

low

,

you w

ill g

et ‘z

ero

’ m

ark

s in the e

xam

.

[(X

/4)

x (

3)]

– [

(3X

/4)

x (

-1)]

=0

It m

eans if you s

olv

e 1

00 q

uestions, you w

ill g

et (1

00/4

) =

25

answ

ers

co

rrect. M

ultip

ly it by 3

and y

ou w

ill g

et 75 m

ark

s.

But no

w, ¾

of your

answ

ers

will

be in

co

rrect, w

hic

h w

ill f

etc

h

you 7

5 p

en

alty m

ark

s. D

educting o

ne m

ark

for

each incorr

ect

answ

er

will

mea

n that you lose 7

5 m

ark

s. T

he n

et diffe

rence

will

be Z

ero

.

Gre

at

inst

ruct

ing

cla

sse

s fo

r JE

E g

ive

the

ma

teri

al

tha

t y

ou

req

uir

e.

An

yw

ay

wh

at

ha

pp

en

s in

th

e

ev

en

t th

at

yo

u a

re

no

t re

ad

y t

o j

oin

a

ho

n..

.

AL

LE

N b

ou

gh

t II

T

JEE

AD

VA

NC

ED

20

14

To

pp

er

for

4

Cro

re !

!

    J

EE

ad

va

nce

d

resu

lts

an

no

un

ced

on

19

th a

nd

AIR

1

an

d A

IR 3

are

ba

gg

ed

by

All

en

Ko

ta.

Ho

we

ve

r,

Ch

itra

an

g M

urd

ia

said

he

to

ok

on

ly

...

2

Ko

ta

To

pp

e

r

Sto

ry:

Sh

itik

an

th I

IT

JEE

20

08

To

pp

er

I g

av

e J

EE

in

20

09

an

d u

sed

to

he

ar

ab

ou

t th

is

"to

pp

er"

gu

y f

rom

the

2n

d f

loo

r o

f

my

ho

ste

l.

To

pp

er

of

A1

. I

did

n't

pa

y t

...

3

Pag

e 2 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

15

Tri

ck

s t

o G

ue

ss

Co

rre

ct

An

sw

ers

fo

r M

CQ

s i

n J

EE

Ma

in &

J

EE

Ad

va

nc

ed

1)

S

teer

aw

ay f

rom

th

e H

igh

est

an

d t

he L

ow

est

In q

uestions w

hic

h h

ave

answ

ers

in n

um

erical valu

es, sta

y

aw

ay fro

m the e

xtr

em

es. In

60%

cases, th

e h

ighest and the

low

est valu

es a

re n

ot th

e c

orr

ect answ

ers

.

2)

G

am

ble

on

On

e o

f th

e T

wo

Op

tio

ns

If y

ou

have a

lready c

rossed

out tw

o incorr

ect answ

ers

,

gam

ble

on o

ne o

f th

e tw

o o

ption

s in

wh

ich y

ou a

re c

on

fused.

Use o

ther

tips h

ere

while

choosin

g y

our

pic

k s

uch a

s the first

one m

entio

ned a

bove.

3)

N

o N

eg

ati

ve M

ark

ing

mean

s Y

ou

are

in

th

e S

afe

Zo

ne

In c

ase, th

ere

are

questions lik

e ‘M

atc

h the

Follo

win

g’ o

oth

er

sim

ilar

questions w

hic

h d

o n

ot carr

y n

egative m

ark

ing, you

are

fre

e to p

lay. N

ever

leave s

uch q

ue

stio

ns u

n-a

ttem

pte

d.

Stu

dy the m

ark

ing s

chem

e c

losely

and a

lso r

ead th

e

instr

uctio

ns g

iven in the q

uestion p

aper

care

fully

.

4)

U

nit

s a

nd

Valu

es

There

are

questions w

here

they p

lay o

n u

nits a

nd v

alu

es.

Choo

se

the u

nit m

entioned in thre

e o

ptions a

nd c

hoo

se t

he

valu

e that has b

een m

entioned

tw

ice.

Let’s s

ay, in

a q

uestion

rela

ted to H

eat or

Therm

odynam

ics,

the

options a

re:

(a)

6

0

K

(b)

7

0

C

(c)

6

0

C

(d)

50

Co o o o

Arv

in

d

Ke

jri

wa

l's

Da

ug

hte

r

ran

k i

n I

IT J

EE

AD

VA

NC

E 2

01

4

Aft

er

a

rem

ark

ab

le

pe

rfo

rma

nce

in

the

cla

ss 1

2

bo

ard

ex

am

s,

Ha

rsh

ita

Ke

jriw

al,

da

ug

hte

r o

f

Arv

ind

Ke

jriw

al

ma

de

he

r fa

the

r

pro

ud

y..

.

4

38

Fa

cts

ab

ou

t

Arv

ind

Ke

jriw

al

1) 

   N

am

e –

Arv

ind

Ke

jriw

al 

2) 

   B

irth

Da

te

-16

Au

gu

st

19

68

  3

)   

Bo

rn

in -

His

sar,

Ha

rya

na

4) 

  

Re

sid

en

ce -

Th

ey

liv

e i

n .

..

5

Th

e L

ov

e S

tory

of

Tw

o I

ITia

ns

To

da

y,

I w

ish

to s

ha

re w

ith

yo

u a

n

ex

pe

rie

nce

of

6

Pag

e 3 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

Now

sin

ce thre

e o

ption

s m

ention d

egre

e C

els

ius, th

e c

orr

ect

answ

er

will

definitely

have

C in the u

nit p

art

. A

lso s

ee

th

at

the

valu

e 6

0 is m

entioned in b

oth

Cels

ius a

nd K

elv

in. H

ence

,

mo

st

pro

ba

bly

it w

ill b

e the

rig

ht valu

e.

Hence,

we w

ill c

hoose (

c)

or

60

C

as o

ur

answ

er.

This

logic

work

s in 8

0%

of th

e c

ases!

5)

D

om

ain

an

d R

an

ge o

f a F

un

cti

on

Que

stio

ns r

ela

ted to fin

din

g d

om

ain

of a function in

IIT

JE

E

are

usually

asked a

s b

elo

w:

If x

= {

0, 1, 2, 3, 4},

y =

{2

, 3, 4, 5}

and x

X

, y Y

, th

en w

hic

h

of th

e follo

win

g is a

fun

ctio

n in the g

iven s

et -

(a)

f =

{(x

,y)

: y =

x +

1}

(b)

f =

{(x

,y)

: x +

y =

>5}

(c)

f =

{(x

,y)

: y ≤

x}

(d)

None o

f th

ese

In s

uch q

uestions, you d

o n

ot have to s

olv

e the e

ntire

fun

ctio

n.

Just put in

the e

xtr

em

e v

alu

es o

f th

e s

et in

the function

and

see if th

ey s

atisfy

the a

nsw

er.

In this

que

stio

n, you c

an p

ut 0

and 4

for

x a

nd 2

and 5

for

y. Y

ou w

ill b

e a

ble

to g

et th

e

corr

ect answ

er

– (

d)

in this

case.

6)

D

imen

sio

nal

An

aly

sis

is

yo

ur

Fri

en

d i

n C

rim

e

I w

ond

er

wheth

er

adm

inis

trato

rs p

ut such q

uestions o

nly

to

mo

ck s

tud

ents

who a

ctu

ally

solv

e th

em

. S

om

etim

es the

options g

iven a

s a

nsw

ers

are

just so laughab

le! Just th

e

dim

ensio

nal analy

sis

of th

e w

eirdest qu

estions w

ill lead y

ou

to t

he c

orr

ect answ

er

– q

uic

kly

an

d a

ccura

tely

.

Let’s s

ay, th

ere

is a

question in w

hic

h y

ou

have to fin

d

velo

city o

f an e

lectr

om

agnetic fie

ld w

ith w

eird o

rienta

tion. Its

field

valu

es a

re g

iven a

s B

and E

. T

he

options a

re g

iven a

s:

o

o

1 2 3

my

lif

e w

hic

h I

can

be

t w

ill

cha

ng

e y

ou

r

vie

ws

ab

ou

t li

fe

as

it c

ha

ng

ed

min

e.

It i

s a

n .

..

10

Mo

st A

ske

d

Inte

rvie

w

Qu

est

ion

s: H

ow

To

Ta

ckle

Th

em

Ho

w m

an

y o

f

yo

u h

ad

stu

mb

led

up

on

an

inte

rvie

w

qu

est

ion

yo

u

ha

ve

n’t

pre

pa

red

yo

urs

elf

fo

r,

an

d y

ou

r m

ind

dre

w a

bla

nk

?

Se

nsi

ng

th

at

aw

kw

ar.

..

7

KO

TA

MM

S

SC

AN

DA

L:

Bla

ck d

ay

fo

r

stu

de

nt

in k

ota

A r

ail

wa

y

gu

ard

, w

ho

ha

d c

rea

ted

a

fak

e F

ace

bo

ok

acc

ou

nt,

be

frie

nd

ed

a

fem

ale

an

d

8

Pag

e 4 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

Blo

g A

rch

ive

(a)

(2E

/B)

(b)

(2B

/E)

(c)

(2E

/B)

(d)

(2B

/E)

Now

, you a

lready k

now

:

◾D

imensio

ns o

f an E

lectr

ic F

ield

are

(M

LT

A),

and

◾D

imensio

ns o

f a M

ag

netic F

ield

are

(M

LT

A).

Hence,

only

E/B

giv

es y

ou th

e D

ime

nsio

n o

f V

elo

city, w

hic

h

is (

LT

). W

e d

o n

ot need the s

quare

root as it w

ill lead to

the

root of velo

city t

oo.

So, ou

r answ

er

is (

c)

in t

his

ca

se

. Y

ou d

o n

ot re

ally

need to

check for

‘2E

’ as o

nly

one o

ption g

ives y

ou c

orr

ect

dim

ensio

ns.

7)

P

utt

ing

Valu

es t

o N

arr

ow

Do

wn

yo

ur

Op

tio

ns

Use this

trick for

questions in w

hic

h y

ou h

ave to fin

d g

enera

l

expre

ssio

ns for

cert

ain

scenarios.

Let’s take a

n e

asy e

xam

ple

. Y

ou h

ave to fin

d th

e e

xpre

ssio

n

for

Pre

ssure

on a

Bubble

of R

ad

ius R

in a

conta

iner

situ

ate

d

at H

heig

ht fr

om

the g

round leve

l. T

he w

ate

r in

the c

on

tain

er

is u

p to h

eig

ht L

.

Your

options a

re:

(a)

P

+ [pg (

L-h

)/LR

]

(b)

P

+ [pg L

R/(

L-h

)]

(c)

P

+ [pg R

(L-h

)/L]

(d)

P

+ [pg (

L-h

)(L-R

)/L)

1/2

1/2

11

-3-1

10

-2-1

1-1

late

r ra

pe

d

he

r in

sid

e a

ho

tel

roo

m i

n

Ra

jast

ha

n’s

Ko

ta..

.

Fa

mo

us

Ko

ta

Co

ach

ing

Te

ach

ers

an

d

the

ir F

am

ou

s

Lin

es

Yo

u w

ou

ld

rem

em

be

r

the

se l

ine

s to

de

scri

be

yo

ur

life

at

KO

TA

Ga

ura

v

talw

ar

sir.

.

Are

bo

loo

...

 

rk.

sir

"kh

us

to b

hu

t h

og

e

tum

a..

.

9

IIT

-Kh

ara

gp

ur

stu

de

nt

up

loa

ds

nu

de

pic

s o

f

wo

ma

n o

n i

nte

rne

t

An

IIT

stu

de

nt

all

eg

ed

ly u

plo

ad

ed

nu

de

ph

oto

gra

ph

s o

f

a w

om

an

on

in

tern

et,

po

lice

sa

id o

n F

rid

ay

. 

18

-ye

ar-

old

  Su

raji

t

Ku

ma

r Ja

in ,

a..

.

Pag

e 5 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

Blo

g A

rch

ive

आ�ह

ालाफे

सबुक

वरशोधा

LO

VE

: IIT

:

KO

TA

23,5

69जणांनाLO

VE

: IIT

:

KO

TAआ

वडते

आवड

लेआ

वडले

Ab

ou

t M

e

Ris

ha

v S

en

Vie

w m

y c

om

ple

te

pro

file

Su

bsc

rib

e T

o U

s b

y

pro

vid

ing

yo

r e

ma

il

be

low

>>

Th

an

ks

The d

imensio

nal analy

sis

will

tell

you th

at th

e first o

ption is

not corr

ect. S

imila

rly, th

e s

eco

nd o

ptio

n too g

ives y

ou

a

dim

ensio

n o

f P

ressure

per

Unit A

rea a

nd n

ot ju

st P

ressure

.

Now

, w

e o

nly

have third a

nd fourt

h o

ption

s in h

and.

We k

now

that th

e P

ressure

on the s

urf

ace o

f w

ate

r m

ust be P

and (

P +

pg

L)

at th

e b

ase o

f th

e c

onta

iner.

At th

e s

urf

ace o

f w

ate

r, h

= L

and P

ressure

= P

. A

t th

e b

ase

of th

e c

onta

iner,

h =

0 a

nd P

ressu

re =

(P

+ p

g L

). P

ut th

ese

two v

alu

es in the e

quations a

nd y

ou w

ill fin

d the c

orr

ect

answ

er

– (

d)

in this

case.

8)

F

ind

ing

ou

t n

-term

s in

Math

em

ati

cs

Perh

aps the e

asie

st questions in M

ath

s, th

ese e

ither

ask for

the

n term

or

the s

um

or

pro

duct of n-t

erm

s. T

he v

alu

e o

f ‘n

’

is m

ostly 1

, 2 o

r at th

e m

ost 3. S

imply

, put in

th

ese v

alu

es

and c

heck w

heth

er

they fit in.

If y

ou

have trie

d u

p to ‘3

’ a

nd y

ou s

till

do n

ot have th

e

answ

er,

leave it alo

ne. It is m

ost lik

ely

to b

e a

hig

h-level

question.

Here

’s a

n e

xam

ple

for

you:

The s

um

of n n

atu

ral num

bers

(1+

2+

3+

….+

n)

is:

(a)

n (

n-1

)/2

(b)

n (

n+

1)/

2

(c)

n (

n+

2)/

3

(d)

(n+

1)

(n-1

)

Sum

of 1

as a

na

tura

l num

ber

should

be 1

too.

Put 1 a

s the v

alu

e o

f n. S

olv

ing

the e

quations y

ou

will

get 0

for

(a),

1 for

(b),

1 for

(c)

and 0

for

(d).

Hence, w

e c

an r

ule

out

(a)

and (

d).

th

Su

bscri

be t

o IIT

AN

D

KO

TA

em

ail

ad

dre

ss

SUBSCRIBEP

age

6 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

Now

we p

ut 2

as the v

alu

e o

f n. S

olv

ing (

b)

equa

tio

n,

we g

et

3 a

s the a

nsw

er

wh

ile (

c)

equation d

issolv

es into

8/3

, w

hic

h is

not a n

atu

ral num

ber.

Hence, th

e c

orr

ect answ

er

is (

b).

9)

G

en

era

lize Q

uesti

on

s

These a

re the favorite

que

stion

s o

f JE

E a

dm

inis

trato

rs. T

hey

have c

om

ple

x o

rie

nta

tion a

nd y

ou w

ill h

ave to fin

d o

ne o

f th

e

variable

s.

Just assum

e that tw

o o

r m

ore

of th

e a

rbitra

ry v

alu

es a

re z

ero

,

one o

r som

e o

ther

easy v

alu

e a

nd c

heck y

our

options a

gain

.

Here

’s a

n e

xam

ple

:

For

positiv

e r

eal valu

es, it is g

iven that m

x=

ny

and m

<

n, th

en

(a)

m

x>

ny

(b)

m

< y

(c)

m

x<

ny

(d)

m

> y

Solv

ing the

se

will

lead y

ou to the h

ot soup o

f in

equ

alit

ies.

Hence,

here

’s a

n a

ltern

ative. A

ssum

e s

om

e e

asy v

alu

es for

m, x, a

nd n

. L

et’s s

ay, m

= 2

, n

= 3

, an

d x

= 3

. Y

ou w

ill g

et y

as the fourt

h r

oot of 24. A

ppro

xim

ate

it as the

square

root of

5

(sin

ce 5

is t

he s

qua

re r

oo

t of 25).

Hence, it c

an b

e r

oughly

calc

ula

ted to b

e 2

.2.

For

such q

uestions, app

roxim

ating v

alu

es is a

good idea.

Put th

ese v

alu

es in the e

quation

. C

ancel out ‘3

’ w

here

ve

r

possib

le a

nd y

ou

will

soon fin

d the c

orr

ect answ

er

as (

b).

In q

uestions w

here

you g

et ra

nd

om

inclin

ations o

f a p

lan

e

(alp

ha, be

ta o

r w

ha

tever)

, che

ck w

ha

t w

ill h

appen if th

e

inclin

ation

is z

ero

/90. P

ut zero

or

90 a

s the v

alu

e o

f th

e p

lan

and s

ee w

hic

h o

f th

e a

nsw

ers

satisfy

the c

onditio

n.

34

34

2

2

32

32

34

32

32

34

Pag

e 7 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

You c

an a

pply

the s

am

e logic

to fin

d M

om

ent of In

ert

ia a

bout

a r

ando

m a

xis

. H

ere

’s a

n e

xam

ple

:

Fin

d M

om

en

t of In

ert

ia (

M.O

.I)

of a r

od

alo

ng a

n a

xis

at th

eta

degre

es fro

m its

length

passin

g thro

ugh the c

entr

e:

(a)

ML

sin

Ө/1

2

(b)

ML

cos

Ө/1

2

(c)

ML

sin

Өcos

Ө/1

2

(d)M

Lsin

ӨcosӨ

/12

We k

now

that th

e M

.O.I o

f a

rod a

long its

length

is z

ero

. S

o if

Ө =

0, M

.O.I =

0 too. A

ssum

e Ө

= 0

and (

a),

(c)

and (

d)

all

turn

out to

be z

ero

.

Als

o, th

e M

.O.I o

f a r

od

perp

endic

ula

r to

its

axis

(fo

r Ө

=90

) =

ML

/12. U

sin

g Ө

= 9

0, only

(a)

giv

es y

ou tha

t answ

er.

(c)

and (

d)

turn

out to

be z

ero

. S

o, (a

) is

the c

orr

ect answ

er.

Isn’t it sim

ple

? 1

0)

Easie

st

To

pic

th

at

fetc

hes y

ou

20-2

5

Ma

rks

Mo

dern

Physic

s w

ith its

ato

ms, nucle

i, r

ad

iation a

nd a

ll

cannot be ju

st ig

nore

d. It fetc

hes y

ou

as m

uch 2

0-2

5 m

ark

s in

IIT

entr

ance level exam

s a

nd y

ou h

ard

ly n

eed m

ore

than a

day o

r tw

o to u

nders

tand it all.

Just cra

m u

p a

ll th

e form

ula

e. Y

ou just can’t let th

ese

questions g

o. S

tra

ngely

, it r

equ

ires o

ne

-tenth

of th

e

pre

para

tion tim

e y

ou

need f

or

Mec

han

ics b

ut fe

tch

es y

ou ten

tim

es th

e m

ark

s. 11

) D

iag

ram

s f

or

Co

-ord

inate

Geo

me

try

Even if you d

on’t thoro

ughly

un

ders

tand a

conce

pt, d

raw

ing

an a

ppro

xim

ate

dia

gra

m a

ccord

ing to the g

iven s

cale

can

help

you w

ork

ou

t th

e r

adiu

s, are

a, equa

tio

ns e

tc. easily

. It

mig

ht seem

lik

e a

trivia

but it r

eally

work

s in m

any c

ases.

12)

Yo

u c

an

dela

y p

racti

cin

g K

inem

ati

cs a

nd

Tri

go

no

metr

y

Despite w

ha

t th

ey s

ay a

bo

ut th

ese to

pic

s, you n

eed a

num

ber

of hours

or

perh

aps d

ays a

nd e

ven w

eeks to r

eally

22

22

22

22

2

Pag

e 8 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

ma

ste

r th

ese tw

o t

opic

s. A

nd

wh

at do they y

ield

– o

nly

2 o

r 3

questions a

t th

e m

ost. In the s

am

e a

mount of tim

e, you c

an

pro

bably

ma

ste

r severa

l oth

er

topic

s a

nd g

et yo

ur

hands o

n

20-2

5 m

ark

s w

ort

h o

f q

uestions.

So, I w

ill s

uggest you to touch th

ese topic

s o

nly

when y

ou

have e

xtr

a tim

e a

nd h

ave fin

ished w

ith the r

est of you

r

pre

para

tion.

Ma

ny a

rgue a

re t

rigonom

etr

ic m

eth

ods c

an h

elp

yo

u s

olv

e a

num

ber

of question

s. B

ut w

hat

these m

ain

questions n

eed

are

just th

e b

asic

s, w

hic

h y

ou w

ill p

robably

learn

on y

our

ow

n

betw

een y

our

school cla

sses, hom

ew

ork

, co

achin

g c

lasses,

and a

ssig

nm

ents

. F

or

real expert

ise

, you h

ave t

o b

e r

eally

geeky a

nd n

erd

y. S

o, keep y

our

hands o

ff it until you h

ave

ma

ste

red the r

est. 1

3)

Re-r

ead

Ch

ap

ter

1 o

f P

hysic

s f

rom

yo

ur

Cla

ss 1

1 N

CE

RT

Bo

ok

I w

ond

er

why n

o c

oachin

g institu

te p

ays m

uch a

ttention to

this

intr

oducto

ry c

hapte

r on M

easu

rem

ents

. It

is s

o e

asy a

nd

you g

et at le

ast

thre

e q

uestions fro

m D

imensio

ns,

Appro

xim

ation a

nd fin

din

g M

axim

um

Err

or

section

s.

Ma

ke

sure

you

unders

tand it cle

arly. R

ead the s

tudy m

ate

rial,

go thro

ugh the

answ

er

keys a

nd

check p

ast year

papers

with

solu

tion

s. It is e

asy a

nd fetc

hes y

ou s

om

e ‘fr

ee’ m

ark

s.

14)

NC

ER

T f

or

Ch

em

istr

y

My te

achers

in C

lass X

I a

nd X

II a

lways u

sed to s

ay th

at

NC

ER

T b

ooks a

re th

e ‘B

ible

’ fo

r all

com

petitive e

ntr

ance

exam

s in

India

. A

nd I, as u

sual, d

id n

ot pay a

tte

ntion to w

hat

the

y s

aid

.

To m

y h

orr

or,

I d

iscovere

d w

hat th

ey s

aid

was s

o tru

e!

So, he

re a

re m

y w

ord

s o

f w

isdom

: C

onsid

er

NC

ER

T b

ooks

as the b

ooks fro

m w

here

questions w

ill b

e lifte

d fro

m –

directly. In

Math

s a

nd P

hysic

s, th

ere

mig

ht b

e s

om

e

questions fro

m o

ther

books b

ut in

Che

mis

try –

every

questio

n

asked in IIT

JE

E w

as fro

m the N

CE

RT

book. In

fact, in

Ino

rgan

ic C

hem

istr

y, som

e o

f th

e lin

es w

ere

directly q

uote

d

from

the N

CE

RT

book –

str

aig

ht aw

ay C

trl+

C a

nd C

trl+

V

facto

r.

Pag

e 9 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D K

O...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

15)

Let

the M

ind

Ru

le f

or

On

ce!

I know

wha

t th

ey s

ay a

bo

ut alw

ays lis

ten

ing to y

our

heart

. B

ut

IIT

JE

E is a

bout te

stin

g y

our

Inte

lligence a

nd n

ot your

Intu

itio

n. S

o, le

t th

e m

ind d

ecid

e w

hic

h a

nsw

er

to tic

k a

nd a

sk

the

He

art

to just be the M

otiva

tor

for

the thre

e h

ours

when

you a

re ta

kin

g the test.

}Pull

ou

t som

e s

am

ple

IIT

JE

E p

ap

ers

. U

se these tricks to

derive the a

nsw

ers

to the q

uestions in to

pic

s y

ou

have n

ot

stu

die

d y

et and c

heck y

our

score

!~

I got an e

xtr

a 3

0 m

ark

s in

my IIT

JE

E e

xam

by follo

win

g this

very

appro

ach! N

o m

atter

wh

at happens, ne

ve

r lo

se y

our

confidence. W

heth

er

it is d

uring p

repara

tion, du

ring e

xam

, or

after

the e

xam

s, keep y

our

spirits h

igh. I h

ad n

o

unders

tan

din

g o

f concepts

and

yet I m

ade it to

the IIT

s o

nly

because I b

elie

ved that I cou

ld d

o it. T

he tru

th is –

If I can

ma

ke

it, a

nyone

can m

ake th

eir w

ay to the IIT

s too!

Th

at

rem

ind

s m

e t

o g

ive y

ou

on

e m

ore

warn

ing

an

d o

ne

mo

re t

ip:

F W

arn

ing

: N

ever

carr

y a

book o

r re

vis

ion n

ote

s to the e

xam

centr

e. It w

ill ju

st co

nfu

se y

ou a

nd s

tress y

ou o

ut in

the

la

st

min

ute

. Just carr

y y

ou

r adm

it c

ard

and

a p

encil

bo

x/g

eom

etr

y

box w

ith the n

ecessary

sta

tionery

. A

nd g

et at le

ast six

hou

rs

of sle

ep the n

ight befo

re the e

xam

.

F T

ip:

When y

ou feel your

spirits flo

unde

ring in d

esp

air, ju

st

plu

g in y

our

earp

ho

nes a

nd

lis

ten

to these s

ongs:

In E

ng

lish

:

◾F

irew

ork

– K

aty

Perr

y

◾Liv

e lik

e y

ou’re d

yin

g –

Kris A

llen

◾Lose Y

ours

elf-

Em

inem

◾R

em

em

ber

the n

am

e –

Fort

Min

or

◾S

om

eday –

Flip

syde

◾W

ho s

ays –

Sele

na G

om

ez (

me

ant fo

r girl aspirants

)

Pag

e 10 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D ...

18-0

2-2

015

file

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rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

3 c

om

me

nts

:

In H

ind

i:

◾B

aar

baar

haan, bolo

yaar

haan –

Laga

an

◾Jo

soche jo c

hahe w

oh k

ar

ke d

ikha d

e –

Do

aur

do

Paanch

◾K

oi K

ahe R

eh

te R

ahe –

Dil

Chahta

Hai

◾K

ya K

aro

on –

Wake U

p S

id

◾Lakshya (

the

title

song)

– L

akshya

◾Y

eh H

onsla

Kais

e J

huke –

Dor

All t

he b

est

for

yo

ur

JE

E e

xam

s!

I h

op

e t

he

se t

ips h

elp

yo

u in

cra

ckin

g t

he e

xam

.

Sa

tvik

Sr

said

...

Ex

cell

en

t

00

Ra

te t

his

De

cem

be

r 7

, 2

01

4 a

t 9

:15

PM

Su

dh

ee

nd

ra s

aid

...

Th

an

ks

bu

dd

y,

I w

ill

sure

ly t

ry o

ut

all

yo

ur

tip

s!!

00

Ra

te t

his

De

cem

be

r 3

0,

20

14

at

1:3

5 P

M

An

uj

Ch

au

rpa

ga

r sa

id..

.

Du

de

th

nx

it

is v

ery

he

lpfu

l

Pag

e 11 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D ...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

Po

st a

Co

mm

en

t

Ho

me

Re

ad

be

low

art

icle

s to

sco

re

gre

at

in I

IT J

EE

>>

Ho

me

FA

CE

BO

OK

OF

FIC

IAL

PA

GE

Wh

at

is I

IT J

EE

?

Wh

at

is k

ota

??

JEE

MA

INS

20

15

RA

NK

PR

ED

ICT

OR

JEE

Ma

in 2

01

5:

La

st M

inu

te P

rep

ara

tio

n T

ips

CB

SE

cla

sss

12

Ma

rks

Dis

trib

uti

on

of

Ph

ysi

cs,

Ch

em

istr

y

an

d M

ath

s

FA

ST

TIP

S T

O M

EM

OR

IZE

MA

TH

S A

ND

PH

YS

ICS

FO

RM

UL

AE

S

Be

st C

oll

eg

es

in J

EE

MA

INS

IIT

-JE

E:

8 e

asy

wa

ys

to h

an

dle

th

e P

RE

SS

UR

E D

UR

ING

LA

ST

DA

YS

00

Ra

te t

his

Fe

bru

ary

1,

20

15

at

1:3

7 P

M

Pag

e 12 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D ...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm

15

Tip

s to

Ch

ea

t a

t M

CQ

s in

IIT

JE

E:

Gu

ess

ing

Yo

ur

Wa

y t

o t

he I

ITs

Are

yo

u p

lan

nin

g t

o C

rack

IIT

JE

E i

n K

ota

?

Le

arn

Pe

rio

dic

Ta

ble

in

Hin

di

Ho

w t

o g

et

ran

k 1

4 i

n I

IT J

EE

??

Su

cce

ss S

tori

es

of

JEE

Ad

va

nce

d 2

01

3 T

op

pe

rs

Ho

w t

o s

tud

y f

or

JEE

AD

VA

NC

ED

??

To

p 1

0 c

oa

chin

g i

nst

itu

tes

of

Ind

ia

Wh

at

Ch

ap

ters

to

Stu

dy

fo

r JE

E M

AIN

S

Bo

ok

s to

bu

y a

nd

ge

t a

bo

ve

20

0 i

n J

EE

MA

INS

as

we

ll a

s

ge

t 9

0%

in

CB

SE

cla

ss 1

2th

Bo

ard

s

Be

st H

ost

els

in

Ko

ta

Be

st M

ess

an

d T

iffi

n F

aci

liti

es

in K

ota

Mo

st I

mp

ort

an

t N

um

be

rs f

or

Stu

de

nts

in

Ko

ta

To

p D

um

my

CB

SE

Sch

oo

ls i

n K

ota

CO

PY

RIG

HT

© 2

01

5 I

IT A

ND

KO

TA

| P

OW

ER

ED

BY

BL

OG

GE

R

DE

SIG

N B

Y A

UT

OM

AT

TIC

| B

LO

GG

ER

TH

EM

E B

Y N

EW

BL

OG

GE

RT

HE

ME

S.C

OM

Pag

e 13 o

f 13

15

Tip

s to

Chea

t at

MC

Qs

in I

IT J

EE

: G

ues

sin

g Y

our

Way

to t

he

IIT

s ~

IIT

AN

D ...

18-0

2-2

015

file

:///

C:/

Use

rs/h

riti

k/A

pp

Dat

a/L

oca

l/T

emp

/ZE

BX

4F

DV

.htm