Question # 1

Hertz is unit of:

Choose an answer

Time period

Displacement

Amplitude

Frequency

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

Choose an answer

Increases with time

Decreases with time

Changes with time

None of these

SHM is type of ______ motion

Choose an answer

Vibratory

Linear

Circular

None

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

Choose an answer

Equal, Elastic limit

Different, The walls of the laboratory

Different, Elastic limit

None of these

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:

Choose an answer

4 gms

0.4 gm

40 gms

None of these

A body with frequency would complete one vibration in:

Choose an answer

f seconds

1/f seconds

1 second

f²second

If a mass of 10 gm is suspended from a spring of k = 9.8 Nm^-1, then the extension will be:

Choose an answer

1 cm

1 m

10 mm

None of these

Which one of the following is an example of SHM:

Choose an answer

Motion in a plane

Motion in a swing

Motion in a car

None of these

The time taken to complete one vibration is called:

Choose an answer

Frequency

Amplitude

Time

Time period

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

Choose an answer

250 N m^-1

25 N m^-1

2.5 N m^-1

None of these

The graph showing the variation of displacement with time is a

Choose an answer

Sine curve

Straight line

Parabola

None of these

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

Choose an answer

Infinity

Maximum

Zero

Minimum

If a given spring of spring constant k is cut into two indentical segments, the spring constant of each segment is:

Choose an answer

k/2

2 k

4 k

None of these

Velocity of particle executing SHM will be maximum at

Choose an answer

Extreme position

Mean position

b/w mean and extreme

None

A particle moving uniformly along circle its projection along diameter performs

Choose an answer

Linear motion

Projectile motion

SHM

Rotatory motion

A body with frequency of would complete one vibration in:

Choose an answer

f seconds

1/f seconds

1 second

f²second

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

Choose an answer

90°

180°

45°

360°

Acceleration of body executing SHM is always directed towards

Choose an answer

Extreme position

Mean position

Along the direction of motion

None

A particle executes SHM with frequency. The frequency with which its K.E oscillates is

Choose an answer

f/2

2f

f

4f

Amplitude in SHM is equivalent to_____ in circular motion:

Choose an answer

Diameter

Radius

Circumference

None of these

Which of the following forces is responsible for SHM

Choose an answer

Applied force

Restoring force

Fractional force

Elastic force

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

Choose an answer

Translatory motion

Vibratory motion

Rotatory motion

None of these

The time period of a simple pendulum is independent of its:

Choose an answer

Length

Mass

Value of g

Both A and B

The restoring force is always directed towards:

Choose an answer

Rest position

Equilibrium position

Mean position

All of them

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

Choose an answer

90°

180°

45°

360°

An oscillating body oscillates due to:

Choose an answer

Applied force

Restoring force

Frictional force

None of these

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

Choose an answer

f

2 f

3 f

1/2 f

The number of vibration in two seconds can be expressed as

______ of frequency of vibration is f:

Choose an answer

f

2 f

3 f

1/2 f

If mass of 10 gm is suspended from a spring of K=0.8 Nm^-1then the extension will be:

Choose an answer

10 cm

1 m

10 mn

None of these

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

Choose an answer

2500 MHz

0.25 MHz

2500 KHz

None of these

In vibrational motion(SHM)

Choose an answer

P.E remains conserved

Average K.E remain constant

Neither P.E nor K.E remains constant

Total energy remains constant

More Classes

Other Links

ECAT Pre General Science Physics Chapter 7 Oscillations Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer