Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 36

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The gravitational force of attraction between Earth and Venus, if the distance between them is $2.5 \times 10^{7} km,$ is [ mass of Venus = $4.8 \times 10^{24} kg,$ mass of the Earth $= 6 \times 10^{24} kg$ ]

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Important Questions on Gravitation

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 37

A stone of mass

0.05 kg

is thrown vertically upwards. What is the direction and magnitude of net force on the stone during its upward motion?

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 38

Two particles of mass

m_{1}

and

m_{2}

, approach each other due to their mutual gravitational attraction only. Then:

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 39

Newton's law of gravitation is universal, because

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 40

The atmosphere is held to the earth by

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 41

The force of attraction between two unit point masses separated by a unit distance is numerically equal to

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 42

Gravitational constant in the M.K.S. system is of the order of

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 43

The

C . G . S .

unit of universal gravitational constant is

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Physics Crash Course MHT-CET>Chapter 5 - Gravitation>Exercise 1>Q 44

The gravitational constant G is equal to

6.67 \times 10^{- 11} {Nm}^{2} {kg}^{- 2}

in vacuum. Its value in a dense matter of density

10^{10} g {cm}^{- 3}

will be