Define normal (reflection) in physics.
define- reflection
What is meant by 'reflection of light'? Define the following terms used in the study of reflection of light by drawing a labelled ray-diagram : (a) Incident ray (b) Reflected ray (c) Point of incidence (d) Normal (e) Angle of incidence (f) Angle of reflection
Define the term unit in physics.
Define the unit of measurement in physics.