Amicrowave oven operates at 2.60 ghz. what is the wavelength of the radiation produced?

Speed of light = freq * wavelength 
wavelength = speed of light / freq = (3*10^8 m/sec ) / (2.6 * 10^9 /sec) = 1.15 * 10^(-1) m 
1.15 * 10^(-1) m *(10^9 nm / m) = 1.15 * 10^8 nm

Answer:   d.  carbon dioxide.

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