The wavelength of light emitted by a particular laser is 477 nm. This laser light illuminates two slits that are 54.0 µm apart, and a screen is 1.40 m from the slits. What is the angular separation between the n = 2 and n = ?2 maxima?

Respuesta :

Answer:

The angular separation is 2.024°.

Explanation:

Given that,

Wavelength = 477 nm

Distance of two slits d= 54.0 μm

Distance from screen = 1.40 m

We need to calculate the angular separation

Using formula of angular separation

[tex]\sin\theta= n\lambda[/tex]

Where, d = distance

[tex]\lambda[/tex] = wavelength

Put the value into the formula

[tex]\sin\theta=\dfrac{n\lambda}{2d}[/tex]

[tex]\theta=\sin^{-1}(\dfrac{2\times477\times10^{-9}}{54.0\times10^{-6}})[/tex]

[tex]\theta=1.012^{\circ}[/tex]

The angular separation is

[tex]angular\ separation =2\theta[/tex]

Put the value into the formula

[tex]angular\ separation =2\times1.012[/tex]

[tex]angular\ separation =2.024^{\circ}[/tex]

Hence, The angular separation is 2.024°.