JEE Previous Year Question
In a Young's double slit experiment, a laser light of 560 nm produces an interference pattern with consecutive bright fringes' separation of 7.2 mm. Now another light is used to produce an interference pattern with consecutive bright fringes' separation of 8.1 mm. The wavelength of second light is_________nm.
Topic: JEE PYQ
Answer: 630. Full step-by-step solution below.
Correct answer: 630
Solution
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