Gravitation QUESTIONS AND ANSWERS

IIT JEE : Gravitation QUESTIONS AND ANSWERS :: part1 : 21 to 25

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

21.The time period of artificial satellite in a circular orbit of radius R is T. The radius of the orbit in which time period is 8T is:

22.If earth were to rotate faster than its present speed, the weight of an object will:

increase at the equator but remain unchanged at poles

decrease at the equator but remain unchanged at the poles

remain unchanged at the equator but decrease at the poles

remain unchanged at the equator but increase at the poles

23.If the earth stops rotating about its axis, the acceleration due to gravity will remain unchanged at:

equator

latitude 45 degree

latitude 60 degree

poles

24.A point mass of 10 kg is placed at the centre of earth. The weight of the point mass is:

zero

98 N

49 N

none of these

25.A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth:

the acceleration of S is always directed towards the centre of the earth

the angular momentum of S about the centre of the earth changes in direction but its magnitude remains constant

the total mechanical energy of S varies periodically with time

the linear momentum of S remains constant in the magnitude

More Gravitation QUESTIONS AND ANSWERS available in next pages

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