Gravitation QUESTIONS AND ANSWERS

IIT JEE : Gravitation QUESTIONS AND ANSWERS :: part1 : 26 to 30

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

26.The escape velocity on the surface of the earth is 11.2 km/s. If mass and radius of a planet are 4 and 2 times respectively than that of earth, the escape velocity from the planet will be:

11.2 km/s

1.112 km/s

15.8 km/s

22.4 km/s

27.In previous problem, the work done by external agent is:

40 J

-40 J

zero

+10 J

28.The ratio of the energy required to raise a satellite upto a height R (radius of earth) from the surface of earth to that required to put it into orbit there is:

1:1

8:1

4:1

2:3

29.An artificial satellite of the earth releases a packet. If air resistance is neglected, the point where the packet will hit, will be:

ahead

exactly below

behind

it will never reach the earth

More Gravitation QUESTIONS AND ANSWERS available in next pages