Question

What is the highest order dark fringe, , that is found in the diffraction pattern for light that has a wavelength of 575 nm and is incident on a single slit that is 1410 nm wide?

Answer 1

The highest order dark fringe is 2

Step-by-step explanation:

From the question we are told that

The wavelength is
`\lambda = 575 \ nm = 575 *10^(-9) \ m`

The width is of the slit is
`d = 1410 nm = 1410 *10^(-9) \ m`

Generally the highest order dark fringe is mathematically represented as

`m = (w)/(\lambda )`

=>
`m = ( 1410 *10^(-9))/( 575 *10^(-9) )`

=>
`m =2`