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?
Answers
Answered by
3
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
Answered by
2
Answer:
25.40 degrees
Explanation:
Sin I/n
Sin40/1.5
=0.643/1.5
0.429
Sin-¹0.429
=25.40
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