Red light has a longer wavelength than blue light. - Answer questions, Explain Please

Question

Red light has a longer wavelength than blue light.

 

Which of these colors has the higher frequency?

 

Which of these colors has the higher energy?

Answer 1

Red light has a wavelength close to 700nm, and blue is close to 400nm. Wavelength is related to frequency by the equation  c (speed of light) = wavelength * frequency. So red has lower frequency and lower energy than blue light.

Energy = h (Planck's constant) * frequency.