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101. A silver and a copper voltameter are connected in series with a 12.0 V
battery of negligible internal resistance. If 0.806 g of silver is deposited in
half an hour,

the mass of copper deposited is:

a) 0.625 g b) 0.475 g

c) 0.525 g d) 0.575 g

Ans. (B)

102. Which of the following particles do not exist in the 23892U nucleus ?

a) 92 protons b) 92 electrons

c) 146 neutrons d) none of these

Ans. (B)

103. A monochromatic source of light operating at 200 W emits 20 4 10 ×
photons per second. The wavelength ofthe emitted light will be:

a) 400 nm b) 800 nm

c) 600 nm d) 200 nm

Ans. (A)

104. Larger aperture of telescope is used for :

a) Greater Magnification

b) Greater resolution

c) Reducing lens aberration

d) Reducing cost of manufacture

Ans. (B)

105. If the distance of 100 W lamp is increased from a photocell, the
saturation current 'i' in the photocell varies with distance 'd' as:

a) 2 i d µ b) i d µ

c) 1/ i d µ d) 2 1/ i d µ

Ans. (D)

106. The centre of mass of a body :

a) lies always outside the body

b) may lie within, outside or on the surface of the body

c) lies always inside the body

d) lies always on the surface of the body

Ans. (B)

107. The torque on a body is zero. Which of the

following should not change?

a) Linear velocity

b) Angular velocity

c) Force acting on the body

d) Angular displacement
Ans. (B)

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Attached Files

MP PET Question paper.pdf (825.8 KB, 72 views)