Question # 1

The value of solar constant.

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1.4 kW m-2

1.0 kW m-2

1.6 kW m-2

2 kw m-2

The mass of an object is quantitative measure 0 its

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Momentum

Acceleration

Inertia

Energy

Heat is form of.

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Power

Momentum

Energy

Torque

the length of simple pendulum of time period 1 second is

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2 m

1 m

0.5

0.25 m

A communication satellite is used ot reflect the signal of.

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Microwaves

Radio waves

y rays

x -rays

A gas performs 10 J of work while expanding adiabatically. the change in its internal energy is.

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10 J

-10 J

100 J

-200 J

If a convex lens is used as a magnifying glass, whcih lens will give higher magnification that has.

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Short size

Long focal length

Large size

Short focal length

A direction of torque is

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Along the position vector r

Perpendicular to both r and f

Along the direction of force F

Opposite to the direction of r

In rotational motion the torque is equal to rate of change of

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Angular velocity

Linear momentum

Angular momentum

Angular acceleration

The diameter of a lens is called

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Focal length

Aperture

Principle axis

Centre

Which quantity of the following is dimensionless.

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Angular velocity

Centripetal force

Angular acceleration

Angular displacement

SI units of time was redefined in

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1900

1967

1960

1983

The distance between two consecutive wave front is equal to

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One wave length

Two wave length

Half wave length

Three wave length

The state of human blood flow can be found by using.

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Newton's formula of speed of sound

Interference of sound

Phenomena of beats

Doppler's effect of sound

Newton's laws of motion were published in

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1587

1687

1787

1887

A finite volume of gas consists of

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Small no. of molecules

Large no. of molecule

Average no. of molecule

None of these

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

The temperature scale which is independent of nature of substance is.

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Thermodynamic scale

Centigrade scale

Fahrenheit scale

Regnault scale

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