Question

The index of refraction of a certain material is 1.5. If I send red light (700 nm) through the material, what will the frequency of the light be in the material

Answer 1

Answer:
`4.29*10^(14)\text{ Hz}`

Step-by-step explanation:

Given: Speed of red light = 700 nm

=
`700*10^(-9)` m

`= 7*10^(-7)` m

Frequency of red light =
`\frac{\text{Speed of light}}{\text{Speed of red light}}`

Speed of light =
`3*10^8` m

Then, Frequency of red light =
`(3*10^8)/(7*10^(-7))`

`=0.429*10^(8-(-7))=0.429*10^(15)\\\\=4.29*10^(14)\ Hz`

Hence, Frequency of red light =
`4.29*10^(14)\text{ Hz}`

The frequency of the light be in the material is
`4.29*10^(14)\text{ Hz}`.