Question # 1

What will be the value of β for a solid for which α has a value of 2 x 10^-5 C^-1

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2 x 10^-5 K^-1

6 x 10^-5 K^-1

8 x 10^-15 K^-1

8 x 10^-5K^-1

A couple is formed by:

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two forces perpendicular to each other

Two like parallel forces

To equal and opposite forces in the same line.

Two equal and opposite forces not in the same line

The force with which earth attracts a body towards its center is equal to its

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Mass

Weight

Charge

Radius

Moon complete it's one revolution around earth is days:

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22

23

27.3

25

If K = 150 N/m and elasticity is 0.20 m than:

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F = 30N

F= =31N

F = 32N

F = 29N

................. can be add algebraically.

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Scalar quantities

Vector

All

None

Centre of gravity of sphere is at:

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Centre of sphere

Outside of sphere

Radius of sphere

None of these

The formula of torque is:

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L= F x E

E = F x t

t = F x L

E = F x L

Ice at ............ °C is more effective in cooling.

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0

-1

-2

-3

Perpendicular / hypotenuse is equal to:

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Cosθ

Tanθ

Cosecθ

Sinθ

Which of the following do not effect evaporation?

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Temperature

Wind

Volume

Surface area of liquid

The pressure of liquid is given by

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pg V

pg A

pgh

pg

Water starts boiling at:

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80 °C

100 °C

90 °C

101 °C

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