What is the stress known as when there is a relative displacement between various layers of solid?

A. Tangential
B. Linear
C. Lateral
D. Longitudinal

Answer

Correct Answer: A. Tangential

Detailed About MCQs

When successive layers of solid move on each other i.e. when there is a relative displacement between various layers of solid, the stress produced is called as Tangential stress.

By how much the orbital velocity of Moon has to increase for it to cease to remain the earth’s satellite?

A. 2 times
B. 3 times
C. √2 times
D. √3 times

Answer

Correct Answer: C. √2 times

Detailed About MCQs

If the speed of a satellite orbiting close to the earth is made √2 times (or increased by 41%) then it will escape from the gravitational field. Moon is a natural satellite of the earth.