wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A very long (length L) cylindrical galaxy is made of uniformly distributed mass and has radius R(R<<L). A star outside the galaxy in a plane perpendicular to the galaxy and passing through its centre. If the time period of star is T and its distance from the galaxy s axis is r, then:

A
T2r3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Tr
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Tr2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Tr
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Join BYJU'S Learning Program
CrossIcon