Question # 1

The tendency of doing work is called :

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Time

Energy

Force

Area

The force exerted perpendicularly on unit of area of an object is called:& nbsp

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strain

young's modulus

pressure

buoyant force

Which of the following is the unit of momentum?

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Nm

kgms^-2

Ns

Ns^-1

1 litre is equal to:

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10² m³

10^-3 m³

10³m³

10⁶m³

If heat Q flows in time 't' through some metal then rate of flow of heat is defined as

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Flow of heat = 2Qt

Flow of heat = Q/t

Flow of heat = t/Q

Flow of heat = Qt

Mercury is used as thermometric material because it has

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Uniform thermal expansion

Low freezing point

Small heat capacity

All the above properties

Sliding friction can be changed into rolling friction by using:

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Ball bearing

Roller bearing

Both a and b

None of these

On Celsius scale, temperature 300 K will be:

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26°C

25°C

24°C

27°C

PQ & RS are 2 parallel forces moving in same direction than they are called ............... forces.

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Like parallel

Unlike

Parallel

Nil

Centre of gravity of uniform square is:

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Intersection of diagonals

Point of intersection of medians

At centre

None of these

The value of g on moon's surface is 1.6 ms^-2. What will be the weight of a a 100 kg body on the surface of the moon?

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100 N

160 N

1000 N

1600 N

Specific heat of water is J kg^-1 K^-1IS:

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4200

4000

1000

2500

Land and Sea breezes are the results of:

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Conduction

Convection

Radiation

Conduction and radiation

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