Please help with chemistry! Wavelength problem.?

Posted on 2015-10-22 07:18:00 in Chemistry by DARCY

This is just a practice exercise from my book, but I m not really good at chemistry. I m trying to study but cannot figure this problem out. Please put an explanation with the answer if possible. Thank you!!

A source of electromagnetic radiation produces infrared light. Which of the following could be the wavelength of the light?
a) 3.0 nm
b) 4.7 cm
c) 66.8 m
d) 34.5 micrometer
e) 16.5 angstrom

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