Question

What is the rest mass of a photon and an electron with eV=3.1? What equation would you use?

a)E=mc²
b)E=hf
c)E=1/2mv²
d)E= hc/λ
​

Answer 1

To find the rest mass of a photon and an electron, you can use the equations E=hf for the photon and E=mc² for the electron.

Step-by-step explanation:

To find the rest mass of a photon and an electron using eV=3.1, we need to use the equation E=hf for the photon and E=mc² for the electron. In the equation E=hf, E represents the energy of the photon, h is Planck's constant, and f is the frequency. In the equation E=mc², E represents the energy of the electron, m is its rest mass, and c is the speed of light.