Physics · 2021
JEE Main · 16 March 2021, Shift 1 · Q29
A fringe width of 6 mm was produced for two slits separated by 1 mm apart. The screen is placed 10 m away. The wavelength of light used is ' x ' nm.…
A fringe width of $\displaystyle 6$ mm was produced for two slits separated by $\displaystyle 1$ mm apart. The screen is placed $\displaystyle 10$ m away. The wavelength of light used is ' $\displaystyle x$ ' nm.
The value of ' $\displaystyle x$ ' to the nearest integer is \_\_\_\_.
Official answer
600
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