1. There are two theories of light, the particle theory and the wave theory. State evidence which supports each theory. Be explicit. a. Wave Theory b. Particle Theory

2. How far is a star which is 25 light years away? How long would it take to get there at a speed of 30,000 mi/hr? The speed of light is 2.99 x 108 m/s or 186,000 mi/sec.

3. What is the frequency of the red light from a He-Ne laser if the wavelength is 650 nm?

4. What is the energy of the photon's emitted by the laser?

5. What is the wavelength and energy of the photons emitted by a radio station whose number is 88.3 FM?