Question

URGENT!!!

Calculate the frequency of violet light if the wavelength in air is 430nm.

* speed.of violet light in the prism = 2×10^8 m/s
* 1nm = 10^-9
* velocity of light in air = 3×10^8 m/s​

Answer 1

`f=6.97* 10^(14)\ Hz`

Step-by-step explanation:

Given that,

Wavelength,
`\lambda=430\ nm=430* 10^(-9)\ m`

We need to find the frequency of the violet light.

We know that the relation between frequency and wavelength is given by :

`f=(c)/(\lambda)\\\\f=(3* 10^8)/(430* 10^(-9))\\\\f=6.97* 10^(14)\ Hz`

So, the frequency of violet light is
`6.97* 10^(14)\ Hz`.