Question # 1

In SHM, there is always a constant ratio between displacement if body and its:

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Velocity

Period

Mass

Acceleration

The body oscillates due to _____ accelerates and overshoots the rest position due to______,:

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Applied force, inertial

Restoring force, friction

Frictional force, inertial

Restoring force, inertial

An object undergoes SHM. Its maximum equilibrium positions:

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Maximum

Half of its maximum value

Zero

None

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

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Applied force , inertia

Restoring force, friction

Frictional force, inertia

Restoring force, inertia

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

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Circular motion, circumference

Vibratory, chord

SHM, diameter

SHM, circumference

Free oscillations are always produced by:

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An applied force

Gravitational force

Restoring force and inertia

Inertia only

The graph showing the variation of displacement with time is a:

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Sine curve

Straight line

Parabola

None of these

Which one of the following is an example of SHM

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Motion in a plane

Motion in a swing

Motion in a car

None of these

When a body is vibrating, the displacement from mean position

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Increases with time

Decreases with time

Changes with time

None of these

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

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250 N m^-1

25 N m^-1

2.5 N m^-1

None of these

Amplitude is the displacement of the vibrating body from:

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One extreme position to the other extreme position

Mean position any one extreme position

Both A and B are correct

None of these

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

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A

2 A

3 A

4 A

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:

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1.5 sec

2.0 sec

2.3 sec

2.5 sec

Amplitude in SHM is equivalent to ______ in circular motion:

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Diameter

Radius

Circumference

None of these

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

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3 K

2 K

K/4

K/3

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

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Increases

Decreases

Remains constant

None of these

Which of the following forces is responsible for SHM

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Applied force

Restoring force

Fractional force

Elastic force

Hertz is unit of:

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Time period

Displacement

Amplitude

Frequency

Which of the following quantity for particle executing SHM is non-zero at mean position

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Force

Acceleration

Velocity

Displacement

The maximum distance of body from mean position when body is executing SHM is called

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Time period

Displacement

Amplitude

Frequency

The acceleration of body executing SHM is directly proportional to

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Applied force

Amplitude

Displacement

Frictional force

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

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f/2

2f

f

4f

Acceleration of body executing SHM is always directed towards

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Extreme position

Mean position

Along the direction of motion

None

The unit of spring constant is

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J-sec

Metre

Nm^-1

None of these

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

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Equal, Elastic limit

Different, The walls of the laboratory

Different, Elastic limit

None of these

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

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1 second

2 second

3 second

None of these

Velocity of particle executing SHM will be maximum at

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Extreme position

Mean position

b/w mean and extreme

None

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

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10 cm

1 m

10 mn

None of these

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

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Circular motion, circumference

Vibrator, chord

SHM, diameter

SHM, circumference

Vibratory motion is always under

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Applied force

Restoring force

Periodic force

Gravitational force

The graph showing the variation of displacement with time is a

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Sine curve

Straight line

Parabola

None of these

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