In Young’s experiment, the third bright band for light of wavelength 6000Å coincides with the fourth bright band for another source of light in the same arrangement. Then the wavelength of second source is

Options

(a) 3600 Å
(b) 4000 Å
(c) 5000 Å
(d) 4500 Å

Correct Answer:

4500 Å

Explanation:

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