Find the angle of incidence at which a light beam traveling from a medium having the index of refraction n1 = 2.7 to another medium having the index of refraction n2 = 1.6 suffers a total internal reflection.

The angle of incidence at which total internal reflection takes place will be equal to

Explanation:

We have given that light is traveling from a medium  of refractive index x 2.7 to a medium of refractive index 1.6

So refractive index of first medium and

We have to find the angle of incidence for total internal reflection

For total internal reflection

So the angle of incidence at which total internal reflection takes place will be equal to

show the wavelengths of a wave. show the crests of a wave.

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.