Question # 1

The energy store in an atom or molecule due to intermolecular force is:

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Kinetic energy

Potential energy

Internal energy

G.P.E

__________ forces have opposite direction:

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Unlike parallel

Parallel

Like parallel

None of these

Forces on doubled arm spanner are called.

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Torque

Couple

Moment of force

Momentum arm

The range of clinical thermometer is:

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90 ^oC - 106^oC

35^oC - 42^oC

100^oC - 132^oC

24^oC - 35^oC

At what angle sin𝜽 and cos𝜽 has same values:

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30^o

45^o

60^o

90^o

Near the earth surface the gravitational field strength is:

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1 N kg^-1

10 N kg^-1

100 N kg^-1

101 N kg^-1

Dull black surface is a best:

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Emitter

Absorber

Reflector

None of these

Earth's gravitational force of attraction vanishes at:

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6400 km

Infinity

42300 km

1000 km

Coloured surface is a

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Best emitter

Good emitter

Bad emitter

Wrost emitter

Mercury is denser than water by time:

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13,6

10

15

20

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

If f = 40 N is applied and bus is move 1m than work is :

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40 J

60 J

80 J

No work

Rate of change of momentum is equal to:

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Mass

Torque

Weight

Force

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