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What is the wavelength of a 3 x 1012 Hz infrared wave? A. 3 x 10-3 m B. 1x 104 m C. 3 x 1020 m D. 1 x 10-4 m S
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Answers ( )
Answer:
D
Explanation:
wavelength = speed of light/ frequency
= (3 x 10^8 m/s) / (3 x 10^12 Hz)
= 1 x 10^-4 m