Physics - MCQs with answers - Part III

Physics - MCQs with answers - Part III

Q1. Which one of the following types of waves are used in a night vision apparatus?

a) Radio waves
b) Micro waves
c) Infra-red waves
d)None of the above

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Q2.Consider the following.

1. If the two forces act in the opposite directions on an object ,the net force acting on it is the difference between the two forces.

2. If the force is applied in the direction opposite to the direction of motion then it results in a increase in the speed of the object.

Select the incorrect option:

a)1 only
b)2 only
c)Both
d)None

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Q3. Winds and cyclones are caused by the differences in the ______

a) Air
b) Pressure
c) Both
d) None

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Q4. Consider the following statement:

A four wheeled vehicle moving in a sharp circular path at high speed will.

1) Overturn about its outer wheels
2) Overturn about its inner wheels
3) Skid outwards
4) Skid inwards

Which of these statements are correct?

a) 1 & 3
b) 2 & 4
c) 2 & 3
d) 1 & 4

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Q5.Spring Balance is used for measuring

a) The force acting on an objects
b) The force of friction
c) Magnitude of the pressure
d) Relative motion between the objects.

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Q6.In humans, the sound is produced by the

a) Voice box
b) Windpipe
c) Both
d) None

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Q7.Amplitude and frequency are two important properties of

a) Heat
b) Force
c) Sound
d) light

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Q8. Sound can travel through a medium except

a) gases
b) solids
c) liquids
d) Vacuum

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