Question

Which one among the follwing has the highest energy ?
A) Blue light B) green light C) red light D) yellow light

Answer 1

ENERGY =
$\frac{hc}{wavelength}$
and wavelength is small Of BLUE

so blue light have more energy than other mentioned lights.

Answer 2

Ans is a) Blue Light,

Exp. We know that ,

Energy of a radiation, $\\ \\ {E = h\frac{c}{\lambda}}$

Where h is planck's constant and λ is wavelength of a radiation. So, higher the wavelength, then lesser will be energy. Then, longer wavelength means lesser frequency. According to VIBGYOR, blue colour has minimum wavelength in the given radiation. Hence , it will be associated with maximum energy.