Physics · 2022
JEE Main · 28 July 2022, Shift 1 · Q53
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.…
In a Young's double slit experiment, a laser light of $\displaystyle 560$ nm produces an interference pattern with consecutive bright fringes' separation of $\displaystyle 7.2$ mm. Now another light is used to produce an interference pattern with consecutive bright fringes' separation of $\displaystyle 8.1$ mm. The wavelength of second light is \_\_\_\_ nm.
Official answer
630
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