Ared laser (740 nm) shines on a double slit (slit separation = 0.165 mm). what is the angle of the fourth order maximum (that is, the fourth bright fringe away from the central maximum)?

The angle of the fourth order maximum is 1.027 degrees.

Explanation:

It is given that,

Wavelength of red laser,

Slit separation,

We need to find the angle of the fourth order maximum. For maximum, the equation is given by :

So, the angle of the fourth order maximum is 1.027 degrees. Hence, this is the required solution.