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Physics Past Questions and Answers

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Physics Questions

Question 161:

Which of the following is NOT an effect that can be produced by an electric current?

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A Heat
B Light
C Sound
D Motion
E None of the above

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Question 162:

A cell of e.m.f 2V and internal resistance 1\(\Omega\) supplies a current of 0.5 amps to a resistance whose value is

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A 0.5\(\Omega\)
B 1\(\Omega\)
C 2\(\Omega\)
D 2.5\(\Omega\)
E 3\(\Omega\)

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Question 163:

An example of a scalar quantity is

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A Velocity
B Weight
C Electric charge
D Acceleration due to gravity
E Momentum

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Question 164:

Heat was supplied to a block of ice at 0<sup style='font-size: smaller;'>o</sup>C until half of it melted. Which of the following statements is true?

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A The temperature rises and the ice expand
B The temperature remains constant and the volume of the ice decreases
C The ice gives out heat as it melts and the temperature decreases
D The mass remains constant and the temperature increases
E The temperature decreases because some heat is lost

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Question 165:

When a ray of light passes from water to glass, it is

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A Bent away from the normal
B Bent towards the normal
C Totally internally reflected
D Absorbed by the glass
E Broken into a pure spectrum

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