I want to know the answer to the following question:
How much energy does a green light of wavelength 555 nm contain?
All the background I'm provided with is that "For example, green light with a wavelength of 555 nanometres (the approximate wavelength to which human eyes are most sensitive) has a frequency of 7014540000000000000♠540 THz (7014540000000000000♠540×1012 Hz).". Is that enough to answer the question?
Answer: no