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5.2) How fast does light travel? Does blue light travel at the same speed as red light? Why or why not?
5.3) A photon has 4 x 10^-19 Joules of energy. What is the wavelength of this photon?
5.4) List 2 examples of objects or events that you associate with each region of the electromagnetic
5.5) The typical human being has a body temperature of 37 degree C.
- At what wavelength does a human emit the most thermal radiation? Use Wein’s Law to complete this calculation.
- Based on the wavelength you calculated above in what region of the electromagnetic spectrum do human beings “glow”?
- How much power does a typical human emit? Assume that the typical human has a surface area of 1.5 m^2. Use the Stefan-Boltzmann Law to complete this calculation.
5.2) 2.99 *10^9 m/s if travelling in vaccum, both blue and red will travel at the same speed.
5.5 b) based on the calculations, the wavelength of maximum radiation is in the infrared region