Aphoton with a wavelength of 2.29 × 10^–7 meter strikes a mercury atom in the ground state.

calculate the energy, in joules, of this photon. [show all work, including the equation and
substitution with units.]

Energy of photon,

Explanation:

It is given that,

Wavelength of photon,

It strikes a mercury atom in the ground state. We have to find the energy of this photon. It can be calculated using below relation as :

Where

h is the Planck's  constant

c is the speed of light

So,

Hence, the above value is the energy of this photon.

because if the tool that you are using is not balanced it there would be false mass.