A particular form of electromagnetic radiation has a frequency of 5.42x10^15 Hz. What is the wavelength is nanometers? meters? reply in scientific notation.

Answer 1

c = frequency x wavelength.
c = 3E8 m/s. Wavelength will be in meters. Convert to nm by multiplying by 1E9.

Answer 2

what is the energy in joules of one quantum of this radiation? reply in scientific notation.