waves

Question: Equation of motion in the same direction are given by ${{y}_{1}}=2a\sin (\omega t-kx)$ and ${{y}_{2}}=2a\sin (\omega t-kx-\theta )$. The amplitude of the medium particle will be

1) $2a\cos \theta $

2) $\sqrt{2}a\cos \theta $

3) $4a\cos \theta /2$

4) $\sqrt{2}a\cos \theta /2$

Solution:

Explanation: No Explanation

Progressive Waves

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