Assignment:
1. Answer the following questions:
- What is the speed of light? (In meters per second)
- What does it mean to achieve a critical angle when talking about refraction?
- Two polarizers in series are able to block most of incoming light. Explain what happens.
- Polarized glasses are normally used by skiers, fishermen, etc. However, there is only one polarized lens between your eye and the source, instead of two. Why are these people using polarized glasses?
2. A laser shines through a diffraction grating with 350 lines/mm. The angle between the center and first diffracted light beam is 5°. What is the wavelength? What color is this laser?
3. Kyle's dead body is 2 meters away from the lens and produces an image 50 cm away. (Consult the diagram on page 11 of your lab module). What is the focal length of the lens? What is the magnification of the lens? If Kyle's body 4 feet, how big is the gruesome image? Is this image inverted?