Physics · 2020
JEE Main · 9 January 2020, Shift 1 · Q9
Three harmonic waves having equal frequency ν and same intensity I_0, have phase angles 0, (π)/4 and -(π)/4 respectively. When they are superimposed…
Three harmonic waves having equal frequency $\displaystyle \nu$ and same intensity $\displaystyle \mathrm{I}_0$, have phase angles $\displaystyle 0, \frac{\pi}{4}$ and $\displaystyle -\frac{\pi}{4}$ respectively.
When they are superimposed the intensity of the resultant wave is close to :
Official answer
(4)
$\displaystyle 5.8 \mathrm{I}_0$
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