Question # 1

Mathematically density is defined as

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mass/volume

force/area

volume/mass

mass/area

Gallium (element) melts at:

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40 °C

30 °C

80 °C

90 °C

Gravitational constant depends on:

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Medium

Force

Weight

It does not depend son anything

Prefix naming as Giga has a symbol.

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M

G

m

g

A body has mass 986 Kg than W = ............... .

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9860 kg

9860 N

9860 m/s2

Nil

The weight of a body is 100 N its weight in deep space is :

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100 N

50 N

25 N

0 N

Ability of body to do work due to its height is called.

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potential energy

kinetic energy

gravitational potential energy

elastic potential energy

In a right angle triangle base is 4 cm and perpendicular is 3 cm length of diagonal will be:

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2 cm

5 cm

4 cm

6 cm

The freezing point of Mercury is:

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49 ^oC

-49^oC

39^oC

-39^oC

The value of gravitational acceleration when a body is moving in downward direction is.

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10 ms^-1

10 ms^-2

10 m

-10 ms

In reading 27.5 first two digits are accurate while third one is.

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Accurate

Correct

Doubtful

In correct

The value we get after rounding 1.47 is

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1.4

1.5

1.47

1.46

The rate of doing work is called :

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Power

Work

Efficiency

None of above

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