The radiant heat from the sun received by each square foot of ground affects a number of questions, such as evaporation from the soil, the growth of close-growing crops, and snow conditions. One of ...

There are different ways to investigate refraction in rectangular blocks. In this required practical activity, it is important to: make, measure and record the angles of incidence accurately using a ...

Using thin films of dielectric materials in optical coatings have long been common practice in the glass and optics industries. For example, Bragg mirrors in laser cavities are formed using ...

A light ray is traveling in a transparent material of refractive index 1.51 at an angle of incidence of 38 degrees and approaches a second material of refractive index 1.46. Solve for (a) the angle of ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...