In Young's Double slit experiment, if the spacing between the slit is doubled and the linear distance from the screen is reduced 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. Remains same
- B. Reduce to one half
- C. Reduce to one quarter
- D. Increase to twice
Explanation
n=λD/dIf the slit spacing (d) is doubled and the distance between the slit and screen(D) is halved. The fringe spacing(x) becomes one-quarter.
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