Choose the correct ray diagram when a light falls normally on a surface separating two different media:
∵i=0 Snell's law n1sin i=n2sin r n2 sin r=0 r = 0 Hence, correct option is 'B'
What happens when a ray of light falls normally on the surface of a mirror?
What happens when a ray of light falls normally (or perpendicularly) on the surface of a plane mirror ?