Question

Which of the following occurs as the frequency of a photon decreases? (Select all correct answers)The speed decreases.The energy decreases.The wavelength increases.The speed increases.The energy increases.The wavelength decreases.

Answer 1

• Answer is option C ,, As the frequency of a photon decreases,the wavelength increases.

Reason :

A photon's energy is inversely proportional to it's wavelength.

As the frequency of a photon goes up, the wavelength goes down, and as the frequency goes down, the wavelength increases