1.5 Dispersion
Refractive index varying with wavelength, splitting white light through a prism, arching rainbows across the sky, and blurring lenses with color fringes.
5 exercises
1.5 Exercise 1
In the preceding example, how much distance inside the block of crown glass would the red and the violet rays have to progress before they are separated by 1.0 mm?
1.5 Exercise 3
A high-quality diamond may be quite clear and colorless, transmitting all visible wavelengths with little absorption. Explain how it can sparkle with flashes of brilliant color when illuminated by white light.
1.5 Exercise 5
A beam of white light goes from air into water at an incident angle of . At what angles are the red (660 nm) and violet (410 nm) parts of the light refracted?
1.5 Exercise 7
(a) A narrow beam of light containing yellow (580 nm) and green (550 nm) wavelengths goes from polystyrene to air, striking the surface at a incident angle. What is the angle between the colors when they emerge? (b) How far would they have to travel to be separated by 1.00 mm?
1.5 Exercise 9
A ray of 610-nm light goes from air into fused quartz at an incident angle of . At what incident angle must 470 nm light enter flint glass to have the same angle of refraction?
Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.