Physics A: Problem Set 16: Diffraction and interference
recommended reading
High Marks: | 4:25–4:27, 4:35–4:36 |
Barron's Let's Review: | 12.7 Diffraction and interference of light |
physics.info: | Diffraction & interference (light) |
Wikipedia: | Diffraction, Interference (wave propagation), Double-slit experiment, Discrete spectrum (physics), Continuous spectrum |
HyperPhysics: | Diffraction of sound |
Khan Academy: | Interference of light waves |
YouTube: | The brightest part of a shadow is in the middle |
Mr. Machado: | 09 Diffraction |
sample problem
- Suppose you were the owner of a radio station and that you wanted to extend the range of your broadcast. Would it be wise to erect a second transmitting antenna to broadcast simultaneously with the first? How will a second transmitter affect reception? Explain your reasoning.
homework
- For what portion of the electromagnetic spectrum could a picket fence be used as a diffraction grating? Explain your reasoning.
- For each of the following examples, state whether the source of light produces a spectrum that is mostly continuous or mostly discrete. Compile your results in a table like the one below.
Identify the spectral type with a check mark (√) source continuous discrete blow torch candle flame cathode ray tube emission nebula firefly fluorescent tube glow stick incandescent bulb laser LED neon sign plasma display the Sun red hot metal