Two satellites X and Y are moving in circular orbits of radii R and 2R respectively, around the same planet. What is the ratio of their critical velocities ?

Two particles having masses M and m are moving in a circular path having radii R and r respectively. If their periods are same, then the ratio of their angular velocities will be

Two satellite A and B are moving round a planet in circular orbit having radii R and 3R respectively, if the speed of satellite A is v the speed f satellite B will be :

Two satellite A and B are moving round a planet in circular orbit having radii R and 3R respectively, if the speed of satellite A is v the speed f satellite B will be :

Two satellites P and Q go round a planet in circular orbits of radii 9R and R respectively. If the speed of the satellite P is 4V, then speed of satellite Q will be

Two satellites P and Q go round a planet in circular orbits of radii 9R and R respectively. If the speed of the satellite P is 4V, then speed of satellite Q will be

Two satellites P and Q go round a planet in circular orbits of radii 9R and R respectively. If the speed of the satellite P is 4V, then speed of satellite Q will be

Two satellite fo masses m and 4m orbit the earth in circular orbits of radii 4r and r respectively. The ratio of their orbital speed is

Two satellite fo masses m and 4m orbit the earth in circular orbits of radii 4r and r respectively. The ratio of their orbital speed is