A planet has twice the radius but the mean density is 1/4th as compared to earth. What is the radio of the escape velocity from the earth to that from the planet?
3:1
1:2
1:1
2:1
As we learnt in
Energy of satellite -
- wherein
Escape velocity
Option 1)
3:1
This is incorrect option
Option 2)
1:2
This is incorrect option
Option 3)
1:1
This is correct option
Option 4)
2:1
This is incorrect option