Questions
The ratio of escape velocity at earth (ve) to the escape velocity at a planet (vp ) whose radius and mean density are twice as that of earth is :
a
1 :2
b
1:22
c
1:4
d
1:2
detailed solution
Correct option is B
Escape velocity = =2GMR=2GR43πR3ρ∝Rρ∴ Ratio, vevp=1:22Talk to our academic expert!
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