What is the condition for the first minimum in single-slit diffraction?

What is the condition for the first minimum in single-slit diffraction?

Step 1: Understand that we are talking about light passing through a single slit.
Step 2: Know that when light goes through a slit, it creates a pattern of light and dark areas on a screen.
Step 3: The dark areas are called 'minima' and the first dark area is the first minimum.
Step 4: The condition for the first minimum is based on the relationship between the slit width and the wavelength of the light.
Step 5: The formula for the first minimum is when the slit width 'a' is equal to the wavelength 'λ' of the light.
Step 6: So, when 'a' equals 'λ', we find the position of the first minimum in the diffraction pattern.

No concepts available.