Question

A electromagnetic wave of light has a wavelength of 500 nm. What is the energy (in Joules) of the photon representing the particle interpretation of this light?

Answer 1

Answer:

Energy, $E=4.002\times 10^{-19}\ J$

Explanation:

It is given that,

Wavelength of the photon, $\lambda=500\ nm=5\times 10^{-7}\ m$

We need to find the photon representing the particle interpretation of this light. it is given by :

$E=\dfrac{hc}{\lambda}$

$E=\dfrac{6.67\times 10^{-34}\times 3\times 10^8}{5\times 10^{-7}}$

$E=4.002\times 10^{-19}\ J$

So, the energy of the photon is $4.002\times 10^{-19}\ J$. Hence, this is the required solution.