ECAT Pre General Science Chapter 7 online mcq test with answers for Physics chapter 7 (Oscillation)

Question # 1

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:

4 gms A
0.4 gm B
40 gms C
None of these D

Question # 2

When a body is vibrating, the displacement from mean position:

Increases with time A
Decreases with time B
Changes with time C
None of these D

Question # 3

Vibratory motion is always under

Applied force A
Restoring force B
Periodic force C
Gravitational force D

Question # 4

Which of the following forces is responsible for SHM

Applied force A
Restoring force B
Fractional force C
Elastic force D

Question # 5

In vibrational motion(SHM)

P.E remains conserved A
Average K.E remain constant B
Neither P.E nor K.E remains constant C
Total energy remains constant D

Question # 6

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

250 N m^-1 A
25 N m^-1 B
2.5 N m^-1 C
None of these D

Question # 7

A particle moving uniformly along circle its projection along diameter performs

Linear motion A
Projectile motion B
SHM C
Rotatory motion D

Question # 8

To and fro motion of a body is about its mean position is known as:

Translatory motion A
Vibratory motion B
Rotatory motion C
None of these D

Question # 9

A particle is moving along a circular path with uniform speed. Its projection will execute _along the ___ of the circle:

Circular motion, circumference A
Vibratory, chord B
SHM, diameter C
SHM, circumference D

Question # 10

The SI unit of spring constant is identical with that of

Force A
Surface tension B
Pressure C
Loudness D

Question # 11

The body oscillates due to accelerates and overshoots the rest position due to _

Applied force, Inertia A
Restoring force, Friction B
Frictional force, Inertia C
Restoring force, Inertia D

Question # 12

An object in SHM will have maximum speed when its displacement from equilibrium position is:

Infinity A
Maximum B
Zero C
Minimum D

Question # 13

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

2500 MHz A
0.25 MHz B
2500 KHz C
None of these D

Question # 14

When quarter of a circle is completed, phase of vibration is:

90° A
180° B
45° C
360° D

Question # 15

The restoring force is and opposite tot he applied force within

Equal, Elastic limit A
Different, The walls of the laboratory B
Different, Elastic limit C
None of these D

Question # 16

When quarter of a cycle is completed, the phase of vibration is:

90° A
180° B
45° C
360° D

Question # 17

Second's pendulum is the pendulum whose time period is:

1 second A
2 second B
3 second C
None of these D

Question # 18

Acceleration of body executing SHM is always directed towards

Extreme position A
Mean position B
Along the direction of motion C
None D

Question # 19

An oscillating body oscillates due to:

Applied force A
Restoring force B
Frictional force C
None of these D

Question # 20

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

f A
2 f B
3 f C
1/2 f D

Question # 21

The S.I unit of frequency is

Vibrations s^-2 A
Ms^-1 B
Hertz C
s^-1 D

Question # 22

Velocity of particle executing SHM will be maximum at

Extreme position A
Mean position B
b/w mean and extreme C
None D

Question # 23

The string of a simple pendulum should be:

Heavy A
Extensible B
In-extensible C
None of these D

Question # 24

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

3 K A
2 K B
K/4 C
K/3 D

Question # 25

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:

1.5 sec A
2.0 sec B
2.3 sec C
2.5 sec D

Question # 26

The time taken to complete one vibration is called:

Frequency A
Amplitude B
Time C
Time period D

Question # 27

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

4 gms A
0.4 gms B
40 gms C
None of these D

Question # 28

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Increases A
Decreases B
Remains constant C
None of these D

Question # 29

Amplitude in SHM is equivalent to ______ in circular motion

Diameter A
Radius B
Circumference C
None of these D

Question # 30

The unit of spring constant is

J-sec A
Metre B
Nm^-1 C
None of these D

Sr.#	Question	Answer
1	Vibratory motion is always under	A. Applied force B. Restoring force C. Periodic force D. Gravitational force
2	Velocity of particle executing SHM will be maximum at	A. Extreme position B. Mean position C. b/w mean and extreme D. None
3	If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:	A. k/2 B. 2 k C. 4 k D. None of these
4	In SHM, the acceleration is ______ when velocity is _____:	A. Zero, smallest B. Smallest, zero C. Zero, zero D. Zero, greatest
5	When quarter of a circle is completed, phase of vibration is:	A. 90° B. 180° C. 45° D. 360°
6	Amplitude in SHM is equivalent to ______ in circular motion	A. Diameter B. Radius C. Circumference D. None of these
7	A spring of constant k = 0.4 N m^-1_{is to be extended thorugh 10 cm at a place where g = 10 m sec}^-2. The mass to be suspended should be:	A. 4 gms B. 0.4 gms C. 40 gms D. None of these
8	Amplitude is the displacement of the vibrating body from:	A. One extreme position to the other extreme position B. Mean position any one extreme position C. Both A and B are correct D. None of these
9	The SI unit of spring constant is identical with that of	A. Force B. Surface tension C. Pressure D. Loudness
10	If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:	A. 2500 MHz B. 0.25 MHz C. 2500 KHz D. None of these

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ECAT Pre General Science Physics Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 7 Oscillations

ECAT Pre General Science Physics Chapter 7 Oscillations

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:

When a body is vibrating, the displacement from mean position:

Vibratory motion is always under

Which of the following forces is responsible for SHM

In vibrational motion(SHM)

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

A particle moving uniformly along circle its projection along diameter performs

To and fro motion of a body is about its mean position is known as:

A particle is moving along a circular path with uniform speed. Its projection will execute ___along the _____ of the circle:

The SI unit of spring constant is identical with that of

The body oscillates due to ______ accelerates and overshoots the rest position due to _______

An object in SHM will have maximum speed when its displacement from equilibrium position is:

If the waves produced in a microwave oven are of wave-length 12 cm, then their frequency will be:

When quarter of a circle is completed, phase of vibration is:

The restoring force is ______ and opposite tot he applied force within ______

When quarter of a cycle is completed, the phase of vibration is:

Second's pendulum is the pendulum whose time period is:

Acceleration of body executing SHM is always directed towards

An oscillating body oscillates due to:

The number of vibrations in two seconds can be expressed as______if frequency of vibration is f.

The S.I unit of frequency is

Velocity of particle executing SHM will be maximum at

The string of a simple pendulum should be:

If there identical strings each of constant K are hooked together the spring constant of resultant spring will be:

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:

The time taken to complete one vibration is called:

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:

When a mass attached to a spring begins to move left or right from the equilibrium position, its P.E.:

Amplitude in SHM is equivalent to ______ in circular motion

The unit of spring constant is

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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:

A particle is moving along a circular path with uniform speed. Its projection will execute _along the ___ of the circle:

The body oscillates due to accelerates and overshoots the rest position due to _

The restoring force is and opposite tot he applied force within

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