Question

If angle of glancing is 90then
a) angle of deviation will be zero
b) angle of incidence will be zero
c) the sum of angle of incidence and reflection is equal to angle of deviation
d) the angle of deviation is a right angle


plz answer me fast​

Answer 1

Answer:

Angle of incidence= angle of reflection

or, 90 °− angle of incidence =90 °− angle of reflection

or, glancing angle of incidence = glancing angle of reflection

So, glancing angle of reflection=10 °