Question # 1

If a wave moves in a slinky spring with frequency of 4Hz and wave length of 0.4m, the speed of the wave will be:

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1.0 ms-1

1.2 ms-1

1.4 ms-1

1.6 ms-1

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 of 2

Remain the same

Be decreased by a factor of 2

Be decreased by factor of 4

In simple Harmonic motion, the acceleration of the body is _____ proportional to the displacement.

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Inversely

Directly

Equally

None of these

The value of acceleration in simple harmonic motion at mean position is

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Maximum

Zero

10 N

Both a , b

In there is no extension in the spring then this positon is called

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Equilibrium position

Unequilibrium

Nautral equilibrium

Stable equilibrium

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

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Ripple tank

Stroboscope

Pendulum

None of these

The disturbance travelling in a medium is called:

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Wave motion

Simple harmonic motion

Motion

both a ,b

The product of frequency (f) and wavelengthλ is equal to:

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Time period

Amplitude

Wave speed

Wave energy / frequency

The time period of frequency and time period is equal to:

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v

1

0

λ

Wave equation is defined as:

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f = Tλ

f = V λ

V = 2fλ

V = fλ

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

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 characteristics of a wave is independent of the others:

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speed

frequency

amplitude

wavelength

The maximum displacement from mean position is called:

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Maximum height

Time period

Amplitude

Intervel

A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete waves in a distance of 50 cm.

The velocity of the wave is:

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53 cms^-1

60 cms^-1

750 cms^-1

1500cms^-1

The S.I unit of Spring constant is:

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Nm

N

Nm-1

Ns

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