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nth bright fringe of red light (λ1 = 7500 Å) Coincides with (n + 1)th bright fringe of green light (λ2 = 6000 Å) . The value of n = ________ .

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nth bright fringe of red light (λ1 = 7500 Å) Coincides with (n + 1)th bright fringe of green light (λ2 = 6000 Å) . The value of n = ________ . 

(A) 8 (B) 4 (C) 2 (D) 1

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Best answer

The correct option is (B) 4.

Explanation:

nth bright fringe of red light Coincides with (n + 1)th bright fringe of green light

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