Question

A wave has 9.2 x 10-22 ) of energy. What is its wavelength?

Answer 1

`\lambda=2.2x10^(-4)m`

Step-by-step explanation:

Hello!

In this case, since the relationship between energy and wavelength is defined via the speed of light and the Planck's constant as shown below:

`e=(c*h)/(\lambda)`

Since c stands for the speed of light and h for the so-called Planck's constant, we can compute the wavelength as follows:

`\lambda=(c*h)/(e)=(3.0x10^8m/s*6.626x10^(-34)J*s)/(9.2x10^(-22)J)\\\\\lambda=2.2x10^(-4)m`

Best regards!