JEE · NEET Previous Year Question
On using red light in Young's double slit experiment, 60 fringes are observed in the field of view. If violet light is used, the number of fringes observed will be
Topic: JEE PYQ
Answer: D. Full step-by-step solution below.
- A30
- B120
- C60
- D90
Correct answer: D
Solution
(d) If fringes are visible in a field of view with light of wavelength while with light of wavelength in the same field, thenHere, ,
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