Calculate Angle of Refraction in Glass Using Snell's Law

Using Snell's law, we can find the angle of refraction:

n1 sin(theta1) = n2 sin(theta2)

where n1 is the refractive index of the incident medium (air), theta1 is the angle of incidence (19.01 degrees), n2 is the refractive index of the glass (1.55), and theta2 is the angle of refraction.

Plugging in the values, we get:

1.00 sin(19.01) = 1.55 sin(theta2)

0.327 = 1.55 sin(theta2)

sin(theta2) = 0.211

Taking the inverse sine (sin^-1) of both sides, we get:

theta2 = 12.16 degrees

Therefore, the angle of refraction in the glass is 12.16 degrees to 3 significant figures.