Light, Waves and Energy

In Module B we investigated light emission from gasses and solids and came to the conclusion that the color of light was related to its energy.

Red Photons - 1.9 eV (low)
Green Photons - 2.2 eV (middle)
Blue Photons - 2.6 eV (high)

So one blue photon has more energy than one red photon. Since color is directly related to a photon's frequency or wavelength, we used the following equation to mathematically describe the color/energy relationship:

Where E is the energy, f is the frequency, l is the wavelength, h is Plank's constant (h = 4.13 ´ 10^-15 eVs) and c is the speed of light (c = 3 ´ 10⁸ m/s).

From your earlier explorations can you describe how the double slit interference pattern would appear for light of different energies? For example compare the interference patterns for a red and green laser.

What would the double slit interference pattern for white light look like?
HINT: Remember white light contains all colors of light.