Question

(1) State Snell's law

(2) Define one Dioptre​

Answer 1

Answer:

1.  Snell's law →

                          The ratio of sine of angle of incidence to the sine of angle of reflection is a constant for the light of a given color and for the given pair of medium.

                               Sin i / Sin r = Constant

2.  1 Dioptre​ →

                        1 dioptre is the power of a lens whose focal length is 1 meter.

Dioptre is the S.I. unit of power of lens.

hope this helps u.................