Class 11 Physics1)The time period of revolution of mars around the sun in years is
1.88
Class 11 Physics2)Gravitation is the
Central force
Class 11 Physics3)The gravitational force is attractive because
F is along -r
Class 11 Physics4)The gravitational force is
Both a and b
Class 11 Physics5)The numerical value of gravitational constant is
6.66*10-11 N/kg2
Class 11 Physics6)As we go down the earth’s surface the acceleration due to gravity decreases by factor
(1 – d/Re)
Class 11 Physics7)The escape speed or escape velocity is given by
Both a and b
Class 11 Physics8)The escape speed for the moon is found to be
2.3km/s
Class 11 Physics9)Earth satellites revolve around the earth in
Both a and b
Class 11 Physics10)While considering motion of an object under the gravitational force of another object which of the following quantities are conserved.
Both a and b