/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 7 : Gravitation This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 The weakest fundamental force is Nuclear Electric Magnetic Gravitational 2 / 10 At which one of the following points, the gravitational field is zero? Any point on the sea level of the earth Centre of the earth On both the poles Any point on the equator 3 / 10 A satellite released from rest at height h will Fall straight Move in circle Escape Oscillate 4 / 10 Gravitational force becomes zero at Mid point between two point masses Poles Infinity Surface of planet 5 / 10 Height of geostationary satellite is about 3,600 km 36,000 km 6,400 km 42,000 km 6 / 10 A geostationary satellite has time period 12 h 18 h 24 h 48 h 7 / 10 A satellite remains in orbit due to Mass of the Satellite Gravitational force Magnetic force Electric force 8 / 10 At what height will g become half of its surface value? R √2 R 2R (√2 −1)R 9 / 10 Potential energy of a satellite is +GMm/r −GMm/2r −GMm/r Zero 10 / 10 Standard value of g on Earth is approximately 10 m/s² 8 m/s² 9.8 m/s² 9 m/s² Your score is 0% Restart quiz
