1.

Perspex is a form of transparent plastic. It has a refractive index n = 1.50. A ray of light strikes the flat surface of a Perspex block with an angle of incidence of 40". What will be the angle of refraction?​

Answer»

Answer:

the REFRACTIVE index = 0.428

Explanation:

n=1.5

i =40°

r = ?

n = sini/SINR => 1.5= SIN40/ sinr =>SIN r= sin40°/1.5

=0.643/1.5=0.428



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