IIT JEE : Gravitation QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.If an artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of the escape velocity from the earth, the height of the satellite above the surface of the earth is: |
| 2R |
| R/2 |
| R |
| R/4 |
2.The time period of a simple pendulum at the centre of earth is: |
| zero |
| infinite |
| less than zero |
| none of these |
3.A satellite is orbiting very close to planet. Its time period depends only upon: |
| density of the planet |
| mass of the planet |
| radius of the planet |
| mass of the satellite |
4.The minimum energy required to launch a m kg satellite from earths surface in a circular orbit at an altitude of 2R where R is the radius of earth, will be: |
| 3mgR |
| 5/6 mgR |
| 2mgR |
| 1/5mgR |
5.If suddenly the gravitational force of attraction between earth and a satellite revolving around it becomes zero, then the satellite will: |
| continue to move in its orbit with same velocity |
| move tangentially to the original orbit with the same velocity |
| become stationary in its orbit |
| move towards the earth |
More Gravitation QUESTIONS AND ANSWERS available in next pages
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