8/20/2019 2nd PU Physics July 2014.pdf

http://slidepdf.com/reader/full/2nd-pu-physics-july-2014pdf 1/4

,.:-_

(EngJish

Version)

'12

Note

:

(i)

Au

parts

are

compursory.

Z_

P

U

C

-

(ii)

Answers

without

relevant

diagra'm/figure/circuit

wherever

necessary

will

not

,

,

'o

rg

Carry any marks.

(iii)

Direct

allswers

to

the Numerical

problems

caffy

any marks.

<7d

lvgly

without

detailed

ffiionTiiffi

=10

?

tly

sr

cS

rg

PART

_

A

I.

Answer

the

following:

l0 x I

1.

What

is a

Capacitor

?

2

Define

drift

velocity

of

electrons.

3.

What

is

the

nature

of

tbrce between

two

parallel

conductors

carrying

current

,'

same

direction

?

4.

State

Faraday's

law

of

elecffomagnetic

induction.

5. which

type

of

lens

is

used

to

correct

myopia (short

sightedness)

?

.

6. What

are

Isotopes

?

7.

Mention

any one

application

of Light

Emitting

Diode

(LED).

8.

Write

the

circuit

symbol

of

AND gate.

9.

Give

an

expression

for

range

of

an antenna

in

terms

of

its

height

from ground.

10.

What

is

Amplification

?

PART

-

B

II.

Answer

any

five of

the

following

questions

:

p..

1 1.

Establish

the

relation

between

electric

field

and

electric potential.

12.

Giveany

two limitations

of

Ohm's law.

ln

f

e

a

is

5x2:10

Code

No.33(NS)

P.T.O.

37

.

The first

member

ofthe

balmer

series

ofhydrgge,n

atom

has

wave

length of

656.3nm.

Calculate

the

wave

length

and

flequency

ofthe

second

member

ofthe

same series

given,-C:3x10E

m/s.For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com

Second PUC Physics July, 2014 Question Paper

8/20/2019 2nd PU Physics July 2014.pdf

http://slidepdf.com/reader/full/2nd-pu-physics-july-2014pdf 2/4

Write

any

two

uses

of

Cyclotron.

14.

state

Ampere's

circuitar

law

a,d

represent

it

mathematicarly.

I5.

Write

any

two

propertiesrof

rnagnetic

field

lines.

16.

What

aro

eddy

"u.r"nt,

?

Gfve one

use

of

it.

:

I

,

,'

'

:,,'.

1'.'.:

:.

.

PART

-

C

]'...

  j:l

III.

A4swer

any

five

of

the

following questions

,

,'

'

.

,

":.

19.

Mention

any

lhree

properties

ofelectric

char

€,

.

,'

'

d

20'

Give

an expression

for

force

acting

on a

charge

moving

in

magnetic

field

and

explain

the.symbols.

when does

the

force

become

nraxirrum

?

,

21'

Derive

a& expression

for

electromotive

force

{mati

ernf}

iadueed

in-a

rod

. .

:

la.

.l ,

movingperp'elrdicu.l'art.otheunifoi"rnmagneticfie1d'.'.;.

:

1

""''

'

:

22.

Derive

an

expression

for

resonant

ftequency

of

series

dorlt

containing

inductor,

capacitor

and

resistor

5x1=

Arrive

:at

thc

relation'between

half

VI,

A

JJ

write

the

expression

for rimit

of

resorution

of

(a)

Microscope

and

(b)

Terescope.

Define

hatf

life

period

of

a radioactive

samplo.

life

and

decay

constant.

26.

Give any

three

differences

between

n-type

and

ptlpe

serniconductors.

)?

24.

25.

Code

No.33(NS)

Code'l

37.

For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com

8/20/2019 2nd PU Physics July 2014.pdf

http://slidepdf.com/reader/full/2nd-pu-physics-july-2014pdf 3/4

PART

-

D

tV.

Answer

any

two of

the

following

questions

:

2

x

5

=

l0

27.

Derive an

expression

for

electric

field

at

,a point

outside

the uniformly

charged

spherical

shell

placed

in

vacuum

using

Gauss

law.

Derive

the

condition for

balance

of

Wheatstones

Bridge

using

KirchhofPs

laws.

Write any four

properties

of

ferromagnetic

materials

and

give

an

example

for

it.

V.

Answer

any

two

of

the

following

questions

:

2x5=10

30.

Derive

an expression

for total

energy of an

electron

in

stationary

state

of

hydrogen

atom.

31. Derive

an expression

for

fringe

width in

case

of Young's

double

slit

experiment.

32.

Explain

the working

of

p-n

junction

diode

as

a full

wave

rectifier

with

circuit

diagram.

Give input

and

output wave

forms.

VI.

Answer

any

three of the

following

questions

:

3x5=15

33.

Two

charges

3

x

l0-8

C and

-2

x

10-8

C are

located

15

cm

apart.

At what point

on

the line

joining

the

two

charges

iJ the electric

potential

zero

?

Take the potential

at

infinity

to be

zgro.

34.

A network

of

resistors

is connected

to

a l2 v

battery

as

shown

in

figure.

(a)

Calculate the

equivalent resistance

of

the

network.

(b)

Obtain

current

in 12

Q

and

6

Ct

resistors.

)

)

28.

29.

t2{,

t2v

Code

No.33(NS)

P.T.O.

37

. The

first

member of

the

balmer

series

of hydrogen

atom

has wave

length of

656.3nm. Calculate

the

wave

length

and

frequency

ofthe

second

member

ofthe same series

given,

C=3x108

m/s.

For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com

8/20/2019 2nd PU Physics July 2014.pdf

http://slidepdf.com/reader/full/2nd-pu-physics-july-2014pdf 4/4

:i

37,

a

35'

rA

p*rt

iru;r

of

25

mH'is

connected

tq,a

sorneo,,of

i2o v

and

so Hz

 

-

-

-._:

mductive

reactance,

rms

value

of

current

and

peak

current

in

the

circuit.

36'

A

prism

of

angle

60"

produces

angle

of

minimum

deviation

of

40".

What

'

.

.:

re&aotive

iodex,?

Calculate

the

angle

ofiri

*it4.

,,.'

.-

(b),

.M.$ imu{

kinetic

en€rgy

ofpnotoet

ns;,,,.,,,.,,:11

.-

:

.:

GivenPlankseonstant=h=6,63

x

10-34Jg

I eV=

1.6

x

l0-reJ

I-.",'An#i

'

1t

r:i'\J

:

3.

'r

I\.

.

'

.,.4,

,,$

r

6",.

.F

.

9.

,C

IL'

Aatm

ll.

',

ri

.

1,2;'

\

14.

i,f

15.

,..,t'

, 16.

'1

,17.

I

,19.

,r

Itr

''

Srr

:1:9.

{

20.

:f

,22,

t,l.

23.

''t

'24,

' .

25.'

(

.,26.

\

Arsw

2i';,',\

2&.'.

{,

lliu*w

3-0"

,I

'31.

,f

32.

r

Aa*w,

33.'.

:

.,

_.,1

.

:.:l

2A1

. .*

35."',r

.

.'.,'''

(

3.6:"'./'

,l

31.

',

I

w.

V.

vL

:A

A

ib,,t

Codofiio.3_${XS}

I

For More Question Papers Visit - www.pediawikiblog.com

For More Question Papers Visit - www.pediawikiblog.com