question_answer

The distance between two slits in a Young's double slit experiment is 3 mm. The distance of the screen from the slits is 1 m. Microwaves of wavelength 1 mm are incident on the plane of the slits normally. The distance of the first maxima on the screen from the central maxima will be:

A) 33.33 cm

B) 35.35 cm

C)  17.7 cm

D) 18 cm