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Physics Past Questions and Answers

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Physics Questions

Question 2866:

The image of an object is located 6cm behind a convex mirror. If its magnification is 0.6, calculate the focal length of the mirror

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A 3.75cm
B 6.60cm
C 10.00cm
D 15.00cm

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Question 2867:

The refractive index of glass for yellow light is greater than that for red light because yellow light

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A Has a greater amplitude than red light
B Is more intense than red light
C Travels more slowly than red light
D Deviates less than red light

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Question 2868:

The real image of an object formed by a converging lens of focal length 15cm, is three times the size of the object. Calculate the object distance

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A 60cm
B 30cm
C 20cm
D 15cm

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Question 2869:

Which of the following statements is not correct about long sight?

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A A Iong-sighted person can see distant objects clearly
B Ight from a nearby object is focused behind the retina.
C The eyeball is too short
D The defect is corrected by using a diverging lens.

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Question 2870:

The amplitude of a wave is the

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A Distance between two successive troughs of the wave
B Separation of two adjacent particles vibrating in phase
C Maximum displacement of the wave particle from the equilibrium position
D Distance travelled by a wave in a complete cycle of its motion

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