Bright and dark fringes are seen on a screen when light from a single source reaches two narrow slits a short distance apart. The locations of bright and dark fringes can be interchanged if a thin film is placed in front of one of the slits. The minimum width of this film must be
A) .
B) .
C) .
D) .
E) .

Question

Bright and dark fringes are seen on a screen when light from a single source reaches two narrow slits a short distance apart. The locations of bright and dark fringes can be interchanged if a thin film is placed in front of one of the slits. The minimum width of this film must be
A) . 
B) . 
C) . 
D) . 
E) .

Quizplus · Accepted Answer

The Answer of Bright and dark fringes are seen on a screen when light from a single source reaches two narrow slits a short distance apart. The locations of bright and dark fringes can be interchanged if a thin film is placed in front of one of the slits. The minimum width of this film must be
A) . 
B) . 
C) . 
D) . 
E) .

Bright and Dark Fringes Are Seen on a Screen When