The superposition of two waves $y_{1}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t\right)\right]$ and $y_{2}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t-\frac{1}{2}\right)\right]$ , results in a wave with a wavelength of:
A) $\frac{\pi}{2}$ m.
B)2 m.
C)( $\pi$m.)
D)4 m.
E)4 $\pi$ m.

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The Answer of The superposition of two waves $y_{1}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t\right)\right]$ and $y_{2}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t-\frac{1}{2}\right)\right]$ , results in a wave with a wavelength of:
A) $\frac{\pi}{2}$ m.
B)2 m.
C)( $\pi$m.)
D)4 m.
E)4 $\pi$ m.

The Superposition of Two Waves y1=(2×10−8 m)sin⁡[π(x2 m−170 st)]y_{1}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t\right)\right]y1​=(2×10−8 m)sin[π(2 mx​− s170​t)]

The Superposition of Two Waves $y_{1}=\left(2 \times 10^{-8} \mathrm{~m}\right) \sin \left[\pi\left(\frac{x}{2 \mathrm{~m}}-\frac{170}{\mathrm{~s}} t\right)\right]$