Question # 1

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

A tuning fork

Mathematical formula of spring constant is:

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F/x

X/F

F/t

F/m

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

Which rays are used to send or receive digital information along aptical fibre:

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infrared

alpha rays

beta rays

mechanical

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

Program up gradation refers to:

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Program enhancement

Program identification

Program development

Program implementation

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

The water waves after striking the hurdle will:

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Reflect

Refract

Diffract

All a , b, c

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

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speed

frequency

amplitude

wavelength

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

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

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Inversely

Directly

Equally

None of these

Diffraction of wave can be observed clearly only when the size of slit or obstacle is nearly__________ to the wavelength of the wave:

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Two times

Equal

Four times

None of these

At extreme position potential energy of the pendulum is

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Maximum

Miimum

a and b

zero

The unit of spring constnat is:

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m

kg

Nm²

Nm^-1

One byte is equal to:

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7 bits

5 bits

8 bits

9 bits

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