A planet has twice the radius but the mean density is `1/4` th as compared to earth. What is the ratio of escape velocity from earth to that from the

Question

A planet has twice the radius but the mean density is `1/4` th as compared to earth. What is the ratio of escape velocity from earth to that from the

A planet has twice the radius but the mean density is `1/4` th as compared to earth. What is the ratio of escape velocity from earth to that from the planet
A. `3:1`
B. `1:2`
C. `1:1`
D. `2:1`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - c
`(v_(rho_(2)))/(v_(rho_(1)))=(R_(2))/(R_(1))sqrt((rho_(2))/(rho_(1)))=2xxsqrt((1)/(4))=2xx(1)/(2)=1`
`(v_(rho_(2)))/(v_(rho_(1)))=(1)/(1)`

4 views Answered 2023-02-05 15:29