Explain why a wave model of light is needed to understand the interference pattern produced in the double-slit experiment. Give two examples of wave-like behaviour of light.

A microwave dinner has the instructions listed below. In this problem, you will explain how following the instructions affect the heat transfer into the meal. The meal starts off frozen, and is covered with a thin piece of plastic "film" or covering when it is taken out of the box. The vegetables are separate from the beef and potatoes.) Instructions: 1. Cut slit in film over vegetables. 2 Microwave on high 4 minutes. 3. Turn bock film from beef and potatoes. Stir beef and potatoes. Replace film. Return tray to microwave oven. 4. Microwave on high 3 minutes. 5. Let stand 2 minutes in microwave oven. Stir beef and potatoes. a. How does each of the steps above (cut slit in film, stir beef and potatoes, etc) affect the heat transfer to the food? Make sure to consider conduction, convection, and radiation where appropriate. b. The instructions ask you to stir the beef and potatoes, but not the vegetables. From this, what can you tell about how each type of food receives and transfers heat?…

What would you observe if you made the slit separation very very large (assuming you still had a coherent source that could still pass through both slits). Comment on how this is different from the single slit experiment.

Explain the interaction of light with thin films, including the conditions for constructive and destructive interference.