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Physics Past Questions and Answers

Jamb Physics Questions

Question 51:

The pressure of one mole of an ideal gas of volume 10^-2 m³ at a temperature of 27°c is
[molar gas constant = 8.3 J mol^-1 k^-1]

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A 2.49 x 10⁴ Nm^-2
B 2.24 x 10⁴ Nm^-2
C 2.49 x 10⁵ Nm^-1
D 2.24 x 10⁵ Nm^-1

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Question 52:

Which of the following has no effect on radiation?

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A Nature of surface
B Density
C Surface area
D Temperature

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Question 53:

The wavelength of a wave traveling with a velocity of 420 ms^-1 is 42 m. what is its period?

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A 1.2 s
B 1.0 s
C 0.5 s
D 0.1 s

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Question 54:

The sound of an electricity bell dies down slowly when air is slowly pumped out from a bottle because

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A The wavelength of sound becomes greater in the bottle
B Sound cannot pass through the bottle
C Sound needs a material medium
D Sound can pass through a vacuum

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Question 55:

During a thunderstorm, the sound is heard over a long time. this phenomenon is referred to as

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A Diffraction of sound
B Refraction of sound
C Superposition
D Reveraberation

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