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1. Radio wave radiation falls in the wavelength region of 10.0 to 1000 meters. W

ID: 918125 • Letter: 1

Question

1. Radio wave radiation falls in the wavelength region of 10.0 to 1000 meters.

What is the energy of radio wave radiation that has a wavelength of 938 m?

Energy = _____ kJ/photon

2. Gamma ray radiation falls in the wavelength region of 1.00×10-16 to 1.00×10-11 meters.

What is the wavelength of gamma ray radiation that has an energy of 1.99×10-12 kJ?

Wavelength = _____ m

3.

Which region of the electromagnetic spectrum are each of these wavelengths near?

Compare the de Broglie wavelength of an electron moving at 1.30×107 miles per hour (5.81×106 m/s) to that of a bullet moving at 700 miles per hour (313 m/s) and a golf ball with a speed of 70.0 miles per hour (31.3 m/s).

Explanation / Answer

Radiowave

WL = 938 m

E = h*c/WL

E = (6.626*10^-34)*(3*10^8)/(938) = 2.1191*10^-18 J/photon

E = 2.1191*10^-15 kJ/photon

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