See if anyone can get something from there..
http://targetiit.com/iit_jee_forum/posts/gravitation_1_1360.html
consider the attractive central force of the form F(r)=-K/rn K is a constant For a stable circular orbit to exist a)n=2 b)n<3 c)n>3 d)n=-1
Its a ques with more than one ans correct
Please explain the ans also
hehehe.. waha bhi nahi solve hua tha...
waise n=2 only hona chahiye naa....
See if anyone can get something from there..
http://targetiit.com/iit_jee_forum/posts/gravitation_1_1360.html