MCQ
There is no atmosphere on the moon because
- AIt is closer to the earth
- BIt revolves round the earth
- CIt gets light from the sun
- ✓The escape velocity of gas molecules is lesser than their root mean square velocity here
✓
Answer
Correct option: D.
The escape velocity of gas molecules is lesser than their root mean square velocity here
d
(d) There is no atmosphere at moon because escape velocity is less than the root mean square velocity of the molecules at moon. Hence all molecules escape.
(d) There is no atmosphere at moon because escape velocity is less than the root mean square velocity of the molecules at moon. Hence all molecules escape.
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