What is Dynamics? Write its branches based on the study of moving objects under the action of forces?

How do we see distant and closer objects?

What is apparent expansion?

Write electrical use of the components in electrical circuit.

Define Power.

Explain the parabolic forces.

Why nuclei fusion is called thermonuclear reaction?

(a) Why does not the atomic mass of an element represent the actual mass of its atom?
(b) The atomic mass of an element is in fraction. What does it mean?

Say whether the following diagrammatic representation is true or false. Give reason.

Define hygroscopic substance.