SSC MTS EXAM

Detailed explanation-1: -relativistic mechanics, science concerned with the motion of bodies whose relative velocities approach the speed of light c, or whose kinetic energies are comparable with the product of their masses m and the square of the velocity of light, or mc2.

Detailed explanation-2: -The branch of physics that deals with the study of the nature and properties of light is called optics.

Detailed explanation-3: -Mechanics is a branch of physics that focuses on the movement and motion of physical objects under a force and when at rest.

Detailed explanation-4: -Mechanics is the branch of physics which deals with the motion of material objects under the influence of forces.