How might you determine the speed of light in a solid, rectangular, transparent object?

Question 25 If a ray of light hits a mirror with an angle of incidence of 20° what is the angle of reflection? 40° 120° 30° O 20° Question 26 When violet light enters a prism it bends toward the normal a lot more than red light, this is because violet light travels slower than red light inside the prism O violet light travels faster than red light inside the prism

What causes the refraction of light at a boundary between two media? A An angle of incidence greater than the critical angle The absorption and emission of light back into the original medium The different indices of refraction for different wavelengths in the same medium Different speeds of light in the two media

A ray of light crosses the boundary between some substance with n = 1.54 and air, going from the substance into air. If the angle of incidence is 29◦ what is the angle of refraction?   Calculate to 1decimal.

A thin beam of light makes an angle of 60° with the surface (not the normal) of a body of water (n = 1.33). Once the light beam refracts into the water what angle does the beam make with the surface of water?     30°     68°     22°     60°