Gravitation

# Gravitation

Test Description

## 5 Questions MCQ Test | Gravitation

Gravitation for Class 12 2022 is part of Class 12 preparation. The Gravitation questions and answers have been prepared according to the Class 12 exam syllabus.The Gravitation MCQs are made for Class 12 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Gravitation below.
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Gravitation - Question 1

### The period of artificial geostationary satellite is

Gravitation - Question 2

### If the mass of the earth is not changed and its radius decreased by 1% then the acceleration due to gravity on the surface of the earth would be:

Gravitation - Question 3

### When satellite orbits close to a planet, its time period depends upon:

Detailed Solution for Gravitation - Question 3

A time period of a satellite is the time taken by the satellite to go once around the earth.
T = 2π(r3/√MG), where r = R + D,
if D is very small wrt to R so D can be neglected .
So T = 2π(√1/Mσ), where σ is density of the planet.
so here clearly we can see if the orbit of the satellite is very close to the planet then its period depends only on the density of the planet.

Gravitation - Question 4

The value of universal gravitational constant G is:

Gravitation - Question 5

When body falls towards earth its motion is due to:

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