Question

To determine the wavelength of a laser source using diffraction of single slit complete notes

Answer 1

Answer:

The value of m = 0 does not correspond to a minimum since m = 0 ⇒ θ = 0, which is the central maximum. Thus by measuring the angular separation between two consec- utive minima and the width of the slit one can find out the wavelength of light. Figure 9.3: Typical single slit diffraction pattern observed on a screen.