Question # 1

Heat is an important form of

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Matter

Energy

Wind

Force

S.I unit of weight is:

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kg

m

N

K

Which one of the following converts light energy into electrical energy:

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Electric Bulb

Electric Generator

Photocell

Electric generator

What happens to the thermal conductivity of a wall if its thickness is doubled?

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Become double

Remain the same

Become half

Become one fourth

The smallest division taht can be taken by a meter rule is.

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1 cm

1 mm

1 dm

1 km

The vacuum in barometer is called:

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Deep vacuum

Mercury vacuum

Torricellian vacuum

None of above

In Einstein's mass-energy equation c means speed of light. Its value is:

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3 x 10^-8 ms^-1

3 x 10⁸ms^-1

3 x 10⁹ms^-1

3 x 10¹⁸ms^-1

Unit of moment arm (L) is:

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Meter

Mole

Newton

Nm

The ability of a body to do work is known as

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power

energy

kinetic energy

potential energy

The earth attracts us due to its __________ mass:

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Little

Zero

Small

Large

The centre of gravity of irregular shaped body can be found with the help of:

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Wedge

Meter rod

Plumb line

Screw gauge

Land and Sea breezes are the results of:

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Conduction

Convection

Radiation

Conduction and Radiation

Unit of strain is:

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Nm^-2

Nm

N

No unit

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