Physics · 2021
JEE Main · 25 February 2021, Shift 1 · Q13
Two coherent light sources having intensity in the ratio 2 x produce an interference pattern. The ratio (I_max - I_min)/(I_max + I_min) will be:
Two coherent light sources having intensity in the ratio $\displaystyle 2 x$ produce an interference pattern.
The ratio $\displaystyle \frac{\mathrm{I}_{\text {max }}-\mathrm{I}_{\text {min }}}{\mathrm{I}_{\text {max }}+\mathrm{I}_{\text {min }}}$ will be :
Official answer
(2)
$\displaystyle \frac{2 \sqrt{2 x}}{2 x+1}$
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