In Young's Double slit experiment, if the spacing between the slit is doubled and the linear distance form the screen is recued to one half then the spacing between the two adjacent bright fringes will be _ of actual value.
Correct answer: C. Reduce to one quarter
- A. Remain same
- B. Reduce to one half
- C. Reduce to one quarter
- D. Increase to twice
Explanation
y=λD/d, where y is the spacing between two adjacent bright fringes Where d is the spacing between the slit and D is the linear distance from the screen. d'=2d D'=½ D y'=λ ½ D' / 2d' y'=λ ½ D / 2d y'=λD/4d y'=λD/d4 y'=¼ y "Will be reduced to one quarter".
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