In a Young’s double-slit experiment, the slit separation is doubled. To maintain the same fringe spacing on the screen, the screen-to-slit distance D must be changed to,
A. 2D
B. D/2
C. √2D
D. D/√2
Answer:A
In a Young’s double-slit experiment, the slit separation is doubled. To maintain the same fringe spacing on the screen, the screen-to-slit distance D must be changed to,
A. 2D B. D/2 C. √2D D. D/√2