Question

A ray of light makes an angle of
40° with the surface of the glass
slab. Its angle of incidence will be​

Answer 1

Answer:

according to the laws of reflection the angle of incidence is equal to the angle of reflection if the angle of reflection is 40 degree then the angle of incidence will also be 40

Explanation:

written by me hope It helped you it's my sweet squared

Answer 2

:$\implies$${\sf{5x + 10}}$ $\large{\sf\bigg( {\frac{x}{3}\bigg)}}$= ${\sf{500}}$