Question

How many nodal lines are created by two point sources emitting at the same wavelength λλ that are separated by a distance equal to 4.5λ4.5λ? Express your answer as an integer.

Answer 1

The number is
`N = 18`

Step-by-step explanation:

From the question we are told that

The distance of separation is d = 4.5λ

Generally equation for nodal lines for two pint source is mathematically represented as

`N = ( 2 * m * d )/(\lambda )`

Here m is 2 represented number of point source

`N = ( 2 * 2 * 4.5\lambda )/(\lambda )`

=>
`N = ( 2 * 2 * 4.5\lambda )/(\lambda )`

=>
`N = 18`