Question

so
SE
A ray of light makes an angle of 50 with the surface s1 of the glass slab its angle of
incidence will be​

Answer 1

Answer:

Since the ray of light makes an angle of 50 degrees,

We know that normal is perpendicular to the surface. Hence, it makes an angle of 90 degrees.

angle i = 90 degrees (angle of normal) - 50 degrees

angle i = 90 - 50

= 40°

Hence the angle of incidence is 40°

Hope this helps....