Question # 1

At sea level , Atmosphere pressure is:

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101,300 Pa

101,400 Pa

101,500 Pa

101, 600 Pa

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

Co-efficient of friction between wood and concrete.

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0.63

0.8

1

0.9

Which is expert thermal climber:

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Crow

Sparrow

Hawks

None

An increasing with decline in atmospheric pressure cause:

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Rainy condition

Pleasent condition

Windy condition

Intense condition

Which surface is best reflector of heat?

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dull black surface

coloured surface

white surface

shining slivered surface

The value of 'g' on the surface of moon is:

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1.62 ms^-2

10 ms^-2

20 ms^-2

Zero

The unit of momentum is :

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kgms^-1

kgms^-2

m sec

None

................ causes coastal breeze.

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Conduction

Convection

Radiation

Nil

Clinical thermometer is used by:

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Astronomers

Doctors

Scientist

Chemists

Alcohol has specific heat in Jkg^-1 K^-1 is:

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2500

4200

1000

138.6

Heat radiation obey the laws of:

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Absorption

Reflection

Both A and B

None

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