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Physics Past Questions and Answers

Jamb Physics Questions

Question 26:

An object 40 cm high is 30cm from the pin hole camera. If the height of the image formed is 20 cm. What is the distance of the image from the pin height?

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A 15 cm
B 70 cm
C 40 cm
D 40 cm

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Question 27:

A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer. The pointer of the galvanometer shows no deflection when?

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A The magnet is moved towards the stationary solenoid
B There is no relative motion
C The magnet is moved away from the stationary solenoid
D The solenoid is moved away from the stationary magnet

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Question 28:

Tyres are treaded to?

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A Increase weight of tyres
B Increase friction
C Increase its longevity
D Look good

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Question 29:

A car starts from rest and covers a distance of 40 m in 10 s. Calculate the magnitude of its acceleration

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A 3.20 ms\(^{-2}\)
B 0.25 ms\(^{-2}\)
C 0.80 ms\(^{-2}\)
D 4.00 ms\(^{-2}\)

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Question 30:

The relationship between the coefficient of linear expansion \(\alpha\) and volumetric expansion (\(\gamma\)) is ____________

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A \(\gamma\) = \(\alpha ^{-3}\)
B \(\gamma\) = \(\alpha\)
C 3\(\alpha\)
D \(\gamma\) = \(\alpha ^{3}\)

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