# NEET Physics Waves Questions Solved

The equation of a stationary wave is $y=0.8\mathrm{cos}\text{\hspace{0.17em}}\left(\frac{\pi x}{20}\right)\mathrm{sin}200\text{\hspace{0.17em}}\pi t$, where x is in cm and t is in sec. The separation between consecutive nodes will be

(1) 20 cm

(2) 10 cm

(3) 40 cm

(4) 30 cm

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