Question

Calculate the wavelength of yellow light with the energy of 3.45x10-19 J

Answer 1

Answer: The wavelength of yellow light with the energy of
`3.45 * 10^(-19) J` is
`5.76 * 10^(-7) m`.

Step-by-step explanation:

Given: Energy =
`3.45 * 10^(-19) J`

Formula used to calculate the wavelength is as follows.

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

where,

E = energy

h = Planck's constant =
`6.63 * 10^(-34) Js`

c = speed of light =
`3 * 10^(8) m/s`

`\lambda` = wavelength

Substitute the values into above formula as follows.

`E = (hc)/(\lambda)\\3.45 * 10^(-19) J = (6.63 * 10^(-34) Js * 3 * 10^(8) m/s)/(\lambda)\\\lambda = 5.76 * 10^(-7) m`

Thus, we can conclude that the wavelength of yellow light with the energy of
`3.45 * 10^(-19) J` is
`5.76 * 10^(-7) m`.