A nuclear bomb exploded `200 km` above the surface of moon. The sound of explosion on the moon.

We can't listen the sound of explosions in the moon because

The value of g on the surface of the moon

On the surface of the moon, a clock will

A capillary tube is taken from the Earth to the surface of the moon. The rise of the liquid column on the Moon (acceleration due to gravity on the Earth is 6 times that of the Moon) is

A capillary tube is taken from the Earth to the surface of the moon. The rise of the liquid column on the Moon (acceleration due to gravity on the Earth is 6 times that of the Moon) is

Why is there no atmosphere on the surface of the moon ?