Question # 1

On heating Air becomes.

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Heavier

Lighter

Remain same

None

Outer edge of the curved road is elevated to prevent

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Circular motion

Centripetal force

Skidding

Protection

If a person is not moving when he lifts a load on his head work is:

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FS

FS Cos𝜽

FS Sin𝜽

0

The unit of momentum is:

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kgms^-2

kgms^-1

Ns^-1

None of these

Two equal but unlike parallel forces having different line of action produce:

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A torque

A couple

Equilibrium

Neutral equilibrium

Unit of density is:

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Kg/m3

kg/m2

kg/m

kg

Leslie's cube is filled with

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Cold water

Hot water

Mercury

Air

The value of G is __________ Nm² kg^-2.

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6.67 x 10^-11 Nm² kg^-1

6.67 x 10^-11Nm²kg

6.67 x 10^-11Nm²kg^-2

6.67 x 10^-11Nm kg^-1

Coefficient of linear thermal expansion of Steel?

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1.2 x 10^-5

2.2 x 10^-5

0.2 x 10^-5

1.3 x 10^-5

Plasma exist in _______________

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Earth

Satellite

Moon

Sun

The power of electric kettle is 500W and takes 2s to heat up, find heat generated?

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E = 250 w

E = 1000 w

E = 10000 J

1KJ

Expansion in one meter steel is:

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1.0 mm

0.1 mm

1.0 mm

1.3 mm

1 Newton =_________

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1 kg ms^-2

1 kg ms

1 kg m^-1s^-2

1 kg^-1m^-1 s^-1

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