Suppose a photon has a frequency of 300 million hertz (300 megahertz). What is its wavelength? Naim 07:14 Astronomy Chapter 5 Suppose a photon has a frequency of 300 million hertz (300 megahertz). What is its wavelength? A) 1 meter B) 1/300,000 meter C) 300 million meters D) A photon's wavelength cannot be determined from its frequency. Answer: A Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+