Question # 1

Radiation are emited by:

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Cold body

Hot body

All bodies

None

Force per unit Area is :

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Pressure

Density

Efficiency

Nil

The value of latent heat of fusion ice is:

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3.36 x 10^-5 Jkg^-1

3.36 x 10⁵Jkg^-1

3.36 x 10⁶Jkg^-1

None of these

Moon is a _____________ satellite.

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Natural

Artificial

Not manmade

Nil

The resultant vector of given vectors A and B is

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Latent heat of fusion of water is:

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3.36 x 10¹⁰ Jkg^-1

93.6 x 10¹⁰Jkg^-1

3.36 x 10⁵Jkg^-1

None of these

The sun's surface temperature is :

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3,000 K

3,030 k

6,000 K

600 K

The mass of a body is 1 kg, its mass in deep space is :

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1 Kg

0.5 Kg

0.25 kg

0

Center of gravity of an irregular shaped body can be found with help of:

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Screw guage

Plumbline

Meter rode

Wedge

Latent heat of fusion is denoted by:

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H1

Hm

Hv

Hf

A ball of mass 1 kg moving wih velocity 2 ms^-1 its momentum will be;

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1 Ns

2 Ns

0.5 Ns

4 Ns

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

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100 N

160 N

1000 N

1600 N

Metals are good conductor of heat due to

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Free Electrons

Big size of their molecules

Small size of their molecules

Rapid vibrations of their atoms

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