Gravitation Question 263

Question:Two satellite A and B, ratio of masses 3 : 1 are in circular orbits of radii r and 4r. Then ratio of total mechanical energy of A to B is [DCE 2002]

Options:

A) 1 : 3

B) 3 : 1

C) 3 : 4

D) 12 : 1

Show Answer

Answer:

Correct Answer: D

Solution:

Total mechanical energy of satellite $ [E=\frac{-GMm}{2r}] $

Þ $ [\frac{E_{A}}{E_{B}}=\frac{m_{A}}{m_{B}}\times \frac{r_{B}}{r_{A}}] $

Þ$ [\frac{3}{1}\times \frac{4r}{r}] $ =$ [\frac{12}{1}] $



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक