Question # 1

The altitude of geostationary orbits in which communication satellites are launched above the surface of the Earth is

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850 km

1000 km

6400 km

42,300 km

The orbital speed of a low orbit satellite is:

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Zeri

8 ms^-1

800 ms^-1

8000 ms^-1

Pressure is quantity:

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Scalar

Vector

Constnat

Dependent

Which pair of physical quantities has same SI unit?

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energy , power

power , work

energy , work

work , momentum

Which expands on heating?

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Water

Steel

Copper

All are true

The resultant vector of given vectors A and B is

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Kinetic energy of the molecules depends on its:

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Temperature

Surface are

Density

Volume

Formula of weight is derived from which law?

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First law

Second law

Third law

Law of conservation of momentum

What flower is known as natural thermometer?

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Rose

Barasicca

Crocus

Tulip

Weight of the body is due to the :

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Gravitation force

Centripetal force

Centrufugal force

All of the above

On heating Air becomes.

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Heavier

Lighter

Remain same

None

When 10 N along positive x-axis and 7 N along negative x-axis are added by head to tail rule. The resultant force is:

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17 N

10 N

7N

3 N

The symbol of sigma is :

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Σ

m

=

$

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