Gravitation Question 273

Question:A satellite moves round the earth in a circular orbit of radius R making one revolution per day. A second satellite moving in a circular orbit, moves round the earth once in 8 days. The radius of the orbit of the second satellite is [UPSEAT 2004]

Options:

A) 8 R

B) 4R

C) 2R

D) R

Show Answer

Answer:

Correct Answer: B

Solution:

Given that, [T1=1] day and [T2=] 8 days \ [T2T1=(r2r1)3/2] Þ [r2r1=(T2T1)2/3=(81)2/3=4] Þ [r2=4r1=4R]



NCERT Chapter Video Solution

Dual Pane