Question

Only one part of moon can be seen from earth because .
a) Only one part reflects light
b) It does not rotate
c) The period of rotation and revolution are equal
d) None of these

Answer 1

Correct answer-
C)The period of rotation and revolution are equal
Correct location-
Only one part of moon can be seen from earth because the period of rotation and revolution are equal.
Explanation-
The moon is tidally locked to earth which means that one face of moon will continuously face earth while the other will not. This stage is achieved by the slowing down after a long duration by the application of gravity on two bodies. Since the moon is smaller than earth thus it slowed down earlier than earth. But after sometime earth will also get tidally locked to moon. Thus one face of moon always faces towards the Earth.

Answer 2

Answer:

Only one part of moon can be seen from earth because .

ans. c) The period of rotation and revolution are equal