GravitationMedium
Question
Two identical satellites are at the heights R and 7R from the Earth′s surface. Then which of the following statement is incorrect : - (r = radius of the Earth)
Options
A.Ratio of total energy of both is 5
B.Ratio of kinetic energy of both is 4
C.Ratio of potential energy of both 4
D.Ratio of total energy of both is 4 and ratio of magnitude of potential to kinetic energy is 2
Solution
K.E. = + 
r = 2R for the first and r = 8R for the IInd
= 4 : 1
Similarly P.E. is ⇒ -
= 4 : 1
Put the ratio of
= 2
r = 2R for the first and r = 8R for the IInd
= 4 : 1Similarly P.E. is ⇒ -
= 4 : 1Put the ratio of
= 2Create a free account to view solution
View Solution FreeMore Gravitation Questions
The velocity with which a projectile must be fired sothat it escapes earth′s gravitation does not depend on:...The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 ...A solid sphere of uniform density and radius 4 units is located with its centre at the origin O of coordinates. Two sphe...A mass 6 × 1024 kg ( = mass of earth) is to be compressed in a sphere in such a way that the escape velocity from i...A particle of mass M is situated at the centre of a spherical shell of the same mass and radius a. The magnitude of the ...