Question # 1

The numebr .00580 is scientific notation is.

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5 .80 x 10⁵

5 .80 x 10^-4

5 .80 x 10^-3

5 .80 x 10^-2

The word science means.

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Intelligence

Nature

Knowledge

Philosphy

In SI system , unit of density is:

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kgm^-1

kgm^-3

kgm^-2

kgm

There are ______ modes of transfer of heat:

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1

2

3

4

States of equilibrium are:

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2

3

4

5

When a horse pulls a cart , the action is on the :

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Cart

Earth

Man

Earth & cart

Orbital velocity v_o =

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√gR

√RG

gR

gR²

Co-efficient of friction between glass and glass.

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1.0

0.9

1

0.8

Centripetal acceleration of a body is given by formula:

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a_c=v/r

a_c=mv²/r

a_c=v/r²

a_c=v2/r

The mass of a body

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Decreases when accelerated

Increases when accelerated

Decreases when moving with high velocity

None of the above

How many times Mercury is denser than water?

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12.5

13.6

76

76.5

____________ from sun are major source of energy on earth.

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Light

Radiation

Both a & b

None of these

In Einstein's mass-energy equation ,c is the

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Speed of sound

Speed of light

Speed of electron

Speed of Earth

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