Question # 1

The formula of time period of simple pendulum is:

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T = 2π √L/g

T = 2π (L/g)

T = 2π√1/g

T = 1/2π √L/g

The way of doing business by using web is called:

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Sources of entertainment

Web business

E-commerce

E-mail

It mass of bob o a simple pendulum is doubled, its time period.

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is doubled

become four times

remains same

none of the above

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

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infrared

alpha rays

beta rays

mechanical

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

Program up gradation refers to:

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Program enhancement

Program identification

Program development

Program implementation

The displacement produced in the spring directly proportional to force is called:

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Hook's law

Boyle's law

Newton's law

both 'b' and 'c'

Which of the following is a method of energy transfer:

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Conduction

Radiation

Wave motion

All of these

The speed of waves can be calculated by:

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Vt

d x t

f λ

Tf

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

The disturbance travelling in a medium is called:

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Wave motion

Simple harmonic motion

Motion

both a ,b

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

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

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speed

frequency

amplitude

wavelength

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

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Inversely

Directly

Equally

None of these

waves whose speed is equal to speed of light are:

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X-rays

sound rays

electromagnetic waves

shock waves

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

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