Question # 1

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

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Velocity

Period

Mass

Acceleration

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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250 N m^-1

25 N m^-1

2.5 N m^-1

None of these

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 string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

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

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Equal, elastic limit

Different, the walls of the laboratory

Different, elastic limit

None of these

Acceleration of body executing SHM is always directed towards

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Extreme position

Mean position

Along the direction of motion

None

The displacement of body executing SHM is

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x_ocoswt

x_osinwt

x_osin²wt

Both A, B

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

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

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Translatory motion

Vibratory motion

Rotatory motion

None of these

A particle moving uniformly along circle its projection along diameter performs

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Linear motion

Projectile motion

SHM

Rotatory motion

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

The unit of spring constant is:

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J-sec

Metre

Nm^-1

None of these

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

Velocity of particle executing SHM will be maximum at

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Extreme position

Mean position

b/w mean and extreme

None

Which of the following forces is responsible for SHM

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Applied force

Restoring force

Fractional force

Elastic force

Vibratory motion is always under

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Applied force

Restoring force

Periodic force

Gravitational force

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

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1 cm

1 m

10 mm

None of these

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

Which of the following is an example of SHM(in ideal situations)

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Motion of simple pendulum

Motion of horizontal spring man system

Motion of violin string

All 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

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

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

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k/2

2 k

4 k

None of these

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

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Force

Acceleration

Velocity

Displacement

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

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Force

Surface tension

Pressure

Loudness

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:

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4 gms

0.4 gm

40 gms

None of these

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

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Sine curve

Straight line

Parabola

None of these

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

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Translatory motion

Vibratory motion

Rotatory motion

None of these

In SHM, the acceleration is ______ when velocity is _____:

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Zero, smallest

Smallest, zero

Zero, zero

Zero, greatest

If time period of a pendulum is doubled by increasing its length, then its frequency will

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Also be doubled

Become half

Become one fourth

Becomes four times

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

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