Question

Calculate the wavelength of a light that has an energy of 9.55x10^-19J.

Answer 1

`2.08\cdot10^(-7)m`

Step-by-step explanation

To calculate the wavelength of light, we have to apply the formula for the energy of light:

`E=(hc)/(\lambda)`

h = Planck's constant

c = speed of light

λ = wavelength

Therefore, we have that:

`\lambda=(hc)/(E)`

The wavelength of the light is:

`\begin{gathered} \lambda=(6.626\cdot10^(-34)\cdot3\cdot10^8)/(9.55\cdot10^(-19)) \\ \lambda=2.08\cdot10^(-7)m \end{gathered}`