Question # 1

If force is 200 N and length of spanner is 0.15 then torque will be:

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30 Nm

15Nm

20 Nm

10 Nm

Steam is used to run machine because of high amount of ___________ heat.

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Latent

Great

Large

Nil

Standards, of physical quantities were established in .

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1910

1020

1950

1960

_____________ easily undo bolt?

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Long spanner

Medium

Short spanner

Every spanner

Water freezes at:

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0° F

32°F

-273 K

0 K

If the mass of moving body in a circle is doubled then centripetal force wil be:

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Doubled

Half

4 times

Same

Which surface is bad emitter:

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White surface

Black surface

Coloured surface

Silver surface

The SI unit of thermal conductivity is

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Wm K-1

Wm-1K

Wm-1K -1

WmK

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

Both metals and non-metals transfer:

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Electricity

Heat

Both A and B

None of these

The least count of vernier callipers is.

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.01 mm

0.1 mm

.001 mm

.01 m

Water freezes at

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0oF

32oF

273 K

0 K

Least count of physical balance is.

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0.001 g

0.01 g

0.1 g

0.0001 g

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