Two simple harmonic waves having equal amplitudes of $8\,cm$ and equal frequency of $10\,Hz$ are moving along the same direction. The resultant amplitude is also $8\,cm$. The phase difference between the individual waves is $..................$ degree.
JEE MAIN 2023, Medium
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$2 A \cos \left(\frac{\Delta \phi}{2}\right)= A$
$\cos \left(\frac{\Delta \phi}{2}\right)=\frac{1}{2}$
$\frac{\Delta \phi}{2}=60^{\circ}$
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