A laser of wavelength 720 nm illuminates a double slit where the separation between the slits is 0.22 mm. Fringes are seen on a screen 0.85 m away from the slits. How far apart are the second and third bright fringes

The appropriate solution is "2.78 mm".

Explanation:

Given:

or,

or,

As we know,

Fringe width is:

⇒

hence,

Separation between second and third bright fringes will be:

⇒

or,

it doesn't. it was imagined up in the middle ages.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right