Gravitation (NEET Physics): Questions 48 - 52 of 84

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Question number: 48

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

A mass M splits into two parts m and (M - m), which are then separated by a certain distance. What ratio of Equation maximizes the gravitational force between the parts?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 49

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

A particle is suspended from a spring and it stretches the spring by 1 cm on the surface of earth. The same particle will stretches the same spring at a place 800 km above earth surface by -

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 50

» Gravitation » Gravitational Acceleration

MCQ▾

Question

At what height above the earth’s surface the acceleration due to gravity will be Equation of its value at the earth’s surface? Radius of earth is 6400 km

Choices

Choice (4) Response

a.

25600 km

b.

2228 km

c.

12800 km

d.

2560 km

Question number: 51

» Gravitation » Universal Law of Gravitation

MCQ▾

Question

Three particles of equal mass m are situated at the vertices of an equilateral triangle of side l. What should be the velocity of each particle, so that they move on a circular path without changing l?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 52

» Gravitation » Energy

MCQ▾

Question

If g is the acceleration due to gravity on the earth’s surface the gain in P. E. of an object of mass m raised from the surface of the earth to a height of the radius R of the earth is -

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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