Question

define regular reflection

Answer 1

the incident ray,the reflected ray and the normal ray lie on the same plane.When a beam pass of parallel light rays is incident on a plane and smooth surface.The reflected rays will also be parallel.this type of reflection is called regular reflection.

Answer 2

when a beam of parallel right rays fall or incident on a smooth and shining surface and when it is reflected , is in the form of parallel beam of light rays, is called regular reflection.