Question

light of 590 nm wavelength illuminates a single slit of width 0.15 mm. (figure 1) shows the intensity pattern seen on a screen behind the slit.

Answer 1

Single-slit diffraction is a phenomenon where light passing through a narrow slit spreads out and creates an interference pattern on a screen. The intensity at a certain angle can be determined using the specified equation.

Step-by-step explanation:

In single-slit diffraction, when light passes through a narrow slit, it spreads out and creates an interference pattern on a screen.

The intensity at a certain angle to the axis can be determined using the equation:

I(theta) = I(0) * (sin(alpha)/alpha)^2

Where I(theta) is the intensity at angle theta, I(0) is the intensity of the central maximum, and alpha is equal to (pi * d * sin(theta)) / lambda.