A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young’s double slit interference experiment. When a thin film of mica is interposed in the path of one of the interfering beams then

Question

A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young’s double slit interference experiment. When a thin film of mica is interposed in the path of one of the interfering beams then (A) the fringe width increases (B) the fringe width decreases (C) the fringe width remains the same but the pattern shifts (D) the fringe pattern disappears

Tardigrade Admin · Accepted Answer

On placing the thin film of mica in the path of one of the interfering beam in the interference experiment, the path difference of the beam changes. On account of this, the fringe pattern shifts upwards. The width of fringe is not affected at all.

Q. A monochromatic beam of light is used for the formation of fringes on the screen by illuminating the two slits in the Young’s double slit interference experiment. When a thin film of mica is interposed in the path of one of the interfering beams then

the fringe width increases

the fringe width decreases

the fringe width remains the same but the pattern shifts

the fringe pattern disappears

On placing the thin film of mica in the path of one of the interfering beam in the interference experiment, the path difference of the beam changes. On account of this, the fringe pattern shifts upwards. The width of fringe is not affected at all.