Question # 1

Liquid pressure at depth h is:

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p/gh

h/pg

pgh

i/pgh

Which of the substance is lightest one?

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Copper

Aluminium

Mercury

Lead

After tilting if body come back to its original position then the body is in:

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Stable equilibrium

unstable equilibrium

Neutral equilibrium

Equilibrium

At sea level , Atmosphere pressure is:

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101,300 Pa

101,400 Pa

101,500 Pa

101, 600 Pa

Mass of earth is Me is :

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Me = 6× 1024 kg

6× 1024 kg

7× 1024 kg

6× 1024 Mg

The value of 'g' is greater at:

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Moon

Hills

Sea leavel

Desert

If a liquid of mass 'm' requires thermal energy 'ΔQv' to completely change into gas at its boiling point without any change in its temperature, then its latent heat of vapourization can be calculated as following:

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Hv = m/ΔQv

Hv = mΔQv

Hv = cmΔQv

Hv =ΔQv/m

Which of the following material lowers friction when pushed between metal plates:

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Water

Fine marble poder

Air

Oil

Density is quantity:

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Scalar

Vector

Constant

None of these

Thermal conductivities of Lead

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23

30

35

85

Moon is nearly _________ km away from earth.

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6 x 10²⁴

380000

199.62 km

30000

The pressure of liquid is given by

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pg V

pg A

pgh

pg

Amount of heat that flows in unit time is called:

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Rate of flow of heat

Q/t

Conductivity

Both A and B

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