Entry Test MCQ :: Oscillations

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31.

Mass attached to a spring executes.

A.	vibratory motion	B.	rotatory motion
C.	S.H.M	D.	both (a) and (c)

32.

At Murree Hills (Assume value of g changes). If we use a simple pendulum as time standard then one second duration will.

A.	increase	B.	decrease
C.	remains same	D.	is zero

33.

The velocity of the mass attached to a spring is maximum at

A.	mean position	B.	extreme position
C.	both (a) and (b)	D.	none

34.

The projection of the particle moving in a circle with non-uniform speed executes.

A.	S.H.M	B.	Vibratory motion
C.	Both (b) and (d)	D.	None S.H.M

35.

Displacement of the body in S.H.M is equal to amplitude when body is at

A.	mean position	B.	else where
C.	extreme position	D.	none

36.

For a simple pendulum the restoring force is caused by

A.	gravity	B.	spring
C.	hand	D.	all of these

37.

The distance covered by a body in one complete vibration is 20cm. What is the amplitude of body

A.	10 cm	B.	5 cm
C.	15 cm	D.	7.5 cm

38.

A cup of milk is placed in a microwave oven. Tell which statements is false (1) Milk will be heated up only (2) Cup will remain cool (3) Both cup and mild will get hot.

A.	both	B.	1
C.	2	D.	3

39.

In case of a simple pendulum the cause of damping is

A.	drag force of air	B.	gravity
C.	tension in string	D.	none of these

40.

The energy absorbed by a body is ________________ at resonance.

A.	maximum as well minimum	B.	minimum only
C.	maximum only	D.	zero