## Physics Test Various Topics

1- the unit of energy is
a-watt
b-killowatt hour
c-newton
d-poise

2-the dimensions of volume of liquid flowing per second is
a-L3
b-L3T-1
c-L3T

d-ML3T-1

3-prefix of 1018 is written symbolically as
a-A
b-B
c-E
d-P
4-newton calculated that velocity of the sound in air at S.T.P equal to
a-280m/s
b-250m/s
c-300m/s
d-322m/s

5-the speed of sound in steel is greater than it is in air because steel is
a-more elastic than air
b-less elastic than air
c-more dense than air

d-less dense than air

6-in interference there is redistribution of
a-frequency
b-amplitude
c-phase
d-energy

7-the maximum num of possible interference maxima for slit separation equal to twice the wavelength in youngs double slit experiment is
a-infinite
b-three
c-five
d-zero

8-when unpolarized beam of light is incident on a glass slab,the reflected beam is found to be completely plane polarized.what is the angle between the reflected and transmitted beam
a-900
b-1800
c-450
d-300

9-the source and observer are moving towards each other witha speed equal to v/2 where v is the speed of sound.the source is emitting sound of frequency n , the frequency heard by the listener will be
a-zero
b-n
c-n/3
d-3n

10- in double slit interference pattern, decreasing the distance d between the slits causes the width of the fringes to
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#### 1 comment:

1. nkamoo apni book kholo aur answers dekho

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