Question # 1

The practical application of the phenomenon of Mutual induction is

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Transformers

Generator

Motor

All of these

If work is done at the rate of 2 k j per second, then total work done is half an hour will be:

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0.5 Kwn

2 Kwh

1 Kwh

None of these

The decrease in velocity per unit time is called:

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Variable Acceleration

Average Acceleration

Retardation

None of these

Flurescent screen is a screen where visible spot

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vanishes

is made

becomes small and large

none of these

Blood is an

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Compressible fluid

incompressible fluid

hard

none of them

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

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Ideal gas

Inert gas

Real gas

None of these

The magnitude of chemical Effects depends upon:

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Nature of liquid

Quantity of Electricity passed through the liquid

Color of the liquid

Both (A) and (C)

Both (A) and (B)

Capacitance of two or more capacitors

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Increases in series combination

Increases in parallel combination

Remains unchanged

None of the above

The wave form of SHM is

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Pulsed wave

Square wave

Triangular waved

Sine wave

A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:

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First

Second

Third

None of these

Radioactivity is

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self disruptive activity

spontaneous activity

exhibited by all elements under proper conditions

both 'a' and 'b'

A boy walks uniformly along the sides of a rectangular park of size 400 m x 300 m.starting from one corner to the other corner diagonally opposite.Which of the following statements is incorrect?

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He has traveled a distance of 700 m

His displacement is 700 m

His displacement is 500 m

His velocity is not uniform throughout the walk.

The deflection by Einstein is as great as newtons is

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Twice

Thrice

Four times

Half time

An object is placed at a distance of 200 cm from a convex lens of focal length 10 cm the linear magnification is

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1/3

2/3

3/4

None

The uniformly accelerated equations are useful only for

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Angular motion

Curved motion

Linear motion

None of these

The petrol engine works on the basis of

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Kelvin statement

Clausius statement

Carnot cycle

First law of thermodynamics

When the stress change length of a body, it is called:

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Shear stress

Tensile stress

Volume stress

Any of these

None of these

Laws of motion are not valid in a system which is

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inertial

non-inertial

at rest

moving with uniform velocity

Common methods used for the conversion of biomass into fuels are

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Fermentation

In direct combustion

Direct combustion

None of these

The light signal in graded index fibre is totally confined due to

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Total inernal reflection

Continuous refraction

Both a and b

Dispersion

The speed of flow of fluid in laminar flow is

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Low

High

Very high

Some time high some time low

Who gave the corpuscular nature of light

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Einstein

Newton

Maxwell

Thomas young

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