An incident ray of light strikes a diamond at an angle of 45?. The index of refraction of air is 1.0003 and the index of refraction of a diamond is 2.42. What is the angle of refraction rounded to the nearest whole number? 2? 17? 19? 45?

The answer is B) 17 degrees

Angle of refraction=r=17 °

Explanation:

using snell's law

n1 sin i = n2 sin r

i = angle of incidence

r = angle of refraction

n1 = refractive index of first medium

n2 = refractive index of second medium

so 1.0003 sin45 = 2.42 sin r

sinr=0.2923

r = sin⁻¹ (0.2923)

r=17 °

so the angle of refraction=r=17 °