Question # 1

To get a design on the computer screen by moving a pointer with the help of mouse is called:

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word processing

graphic designing

data managing

telecommunication

The S.I unit of Spring constant is:

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Nm

N

Nm-1

Ns

If the mass of the bob of a pendulum is increased by a factor of 3. The period of the pendulum's motion will:

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Be increased by a factor 2

Remain the same

Be decreased by a factor of 2

Be decresaed by a facro of 4

Which of the following characteristics of a wave is independent of the others:

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speed

frequency

amplitude

wavelength

The disturbance travelling in a medium is called:

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Wave motion

Simple harmonic motion

Motion

both a ,b

The unit of spring constnat is:

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m

kg

Nm²

Nm^-1

At mean position of pendulum, the potential energy of the pendulum is:

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Maximum

Minimum

Much more

Both a and c

Which of the following is an example of simple harmonic motion ?

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Motion of the simple pendulum

The motion of ceiling fan

The spining of the Earth on its axis

A bouncing ball on a floor

The instrument used to study the properties of waves is called:

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Ripple tank

Stroboscope

Pendulum

None of these

Which of the following devices can be used to produce both a transverse and longitudinal waves:

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A string

A ripple tank

A helical spring (slinky)

A tuning fork

waves whose speed is equal to speed of light are:

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X-rays

sound rays

electromagnetic waves

shock waves

The motion in which the friction reduces the mechanical energy of the system as times passes and the amplitude of motion reduces is called:

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SHM

Randum motion

Damped motion

None of these

If the distance is nspring is 'x' of mass 'm' attached with a spring then restoring force is:

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F =ma

F =kx

F = mx

F= m/a

The time period of mass attached with a spring can be calculated by:

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T = 2π√L/g

T = 1/T

T =2π√g/L

T = 2π√m/k

The waves in which particle of the medium vibrate parallel to the direction of waves are called

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Longitudinal waves

Transverse waves

Electromagnetic waves

both b and c

Time period is reciprocal of:

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Frequency

Cycle

Wavelength

Amplitude

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