Question

Which of the following colors of light has the highest energy?

A. red

B. green

C. blue

D. violet

Answer 1

If we remember that smaller wavelength = higher frequency = higher energy
red - 620–750 nm
yellow - 570–590 nm
orange - 590–620 nm
blue - 450–495 nm
green - 495–570 nm

Blue light has the smallest wavelength, hence, the highest frequency and the highest energy

Answer 2

so ???

Answer 3

so its C