ECAT Pre Engineering Physics Chapter 7 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 7 Oscillations

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Physics ECAT Pre Engineering Chapter 7 Oscillations

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Question # 1

An object undergoes SHM. Its maximum equilibrium positions:

Question # 2

The SI unit of spring constant is identical with that of:

Question # 3

A particle is moving along a circular path with uniform speed. Its projection will execute____along the____of the circle:

Question # 4

An oscillating body oscillates due to:

Question # 5

Hertz is unit of:

Question # 6

A spring of constant k = 0.4 N m-1is to be extended through 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 7

A body of mass 0.031 kg attached to one end of a spring of spring constant 0.3 N/m, then time period of spring mass system will be:

Question # 8

Distance covered during one vibration of an oscillating body in terms of amplitude A is:

Question # 9

The number of vibration in two seconds can be expressed as
______ of frequency of vibration is f:

Question # 10

The displacement of body executing SHM is

Question # 11

Free oscillations are always produced by:

Question # 12

The restoring force is ______ amd opposite to the applied force within _____:

Question # 13

A spring of constant k = 0.4 N m-1is to be extended thorugh 10 cm at a place where g = 10 m sec-2. The mass to be suspended should be:

Question # 14

The string of a simple pendulum should be:

Question # 15

If a force of 0.05 N produces an elongation of 20 mm in string, then its spring constant will be:

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ECAT Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 If a mass of 10 gm is suspended from a spring of k = 9.8 Nm-1, then the extension will be:
A. 1 cm
B. 1 m
C. 10 mm
D. None of these
2 Acceleration of body executing SHM is always directed towards
A. Extreme position
B. Mean position
C. Along the direction of motion
D. None
3 When quarter of a circle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°
4 An angle of 180° in circular motion is equivalent to ______ in SHM.
A. Half the vibration
B. One vibration
C. 3/4th of a vibration
D. None of these
5 Amplitude in SHM is equivalent to ______ in circular motion
A. Diameter
B. Radius
C. Circumference
D. None of these
6 To and from motion of a body about its mean position is known as:
A. Translatory motion
B. Vibratory motion
C. Rotatory motion
D. None of these
7 The unit of spring constant is:
A. J-sec
B. Metre
C. Nm-1
D. None of these
8 The restoring force is always directed towards:
A. Rest position
B. Equilibrium position
C. Mean position
D. All of them
9 If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:
A. 3 K
B. 2 K
C. K/4
D. K/3
10 When quarter of a cycle is completed, the phase of vibration is:
A. 90°
B. 180°
C. 45°
D. 360°

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