Question # 1

The number of perpendicular components of a force are

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1

2

3

4

Density of water is:

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100 kgm^-3

1000 kgm^-3

10 kgm^-3

1 kgm^-3

On heating the strip, ___________ expands more than_______

respectively.

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Brass, Iron

Iron, Brass

Copper, brass

Brass, copper

The temperature if steam is

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0°C

100°C

273°C

-273°C

Poor conductor of heat is:

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Copper

Aluminium

Water

Iron

Density of water in kgm^-3 is:

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1000

4200

4300

4500

Newton per meter square is a unit of:

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Pressure

Stress

Both A and B

Force

Consider a rigid body. As it rotates, its particles move in fixed

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Squares

Circles

Triangles

Rectnagles

Clockwise torque is taken:

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Positive

Negative

Neutral

Nil

At the surface of the earth value of 'g' is measured by using formula:

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g=GMe/R

g = GMe/R²

g = 2GMe/R²

g = GMe/2 R

The braking system of cars, buses etc also works on

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Newton's law

Pascal law

Faraday law

Bohr's law

On heating Air becomes.

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Heavier

Lighter

Remain same

None

The unit of force is

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Newton

m³

ms^-2

ms^-1

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