Question # 1

SI unit of work is:

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Joule

Coulomb

Ampere

Kelvin

Which surface is bad emitter:

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White surface

Black surface

Coloured surface

Silver surface

All divers need to wear seat belt because of effect of:

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Inertia

Gravity

Car force

Nil

The number of base units in SI are.

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3

6

7

9

Thermoflask is used maintain:

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Heat

Temperature

Density

Pressure

Heat is an important form of

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Matter

Energy

Wind

Force

Gravitational pull of earth is called:

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Weight

Mass

^Force

Tension

Centre of gravity of uniform square is:

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Intersection of diagonals

Point of intersection of medians

At centre

None of these

At night , the air from land to begins towards sea called:

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Land breeze

Sea breaze

Both A and B

Radiation

A ball of mass 1 kg moving with velocity 2 ms-1, Its momentum will be

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1 Ns

2 Ns

0.5 Ns

4 Ns

Least count of digital stop watch is.

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0.01 sec

0.1 sec

1 sec

10 sec

The density of water is:

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5500 kgm^-3

10000 kgm^-3

1000 kgm^-3

330 kgm^-3

Which one box is used to keep food hot and ice cream cold for long period?

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Iron box

Aluminium Box

Styrofoam box

Plastic box

The weight of a body of mass 20 kg is:

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2 N

10 N

20 N

200 N

Kilowatt - hour is unit of _____________

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Power

Energy

Work

K.e

The average speed of cheetah is.

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60 kmh^-1

70 kmh^-1

75 kmh^-1

80 kmh^-1

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