question_answer

A parallel beam of light of wavelength \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\] falls on a single slit of width 0.3 mm and a diffraction pattern is observed on a screen 2 m away from the slit. A point on the screen receives light waves diffracted at angle\[45{}^\circ \]. Find path difference between secondary waves at this point that are emitted by the top end and the midpoint of the slit. (in mm)

Answer:

0.10