A) 1. 5 cm
B) 3 cm
C) 6 cm
D) 4 cm
Correct Answer: B
Solution :
Given, equation \[y=5\sin \frac{\pi x}{3}\cos 40\pi t\] Comparing with standard equation \[y=A\sin kx\cos \omega t\] \[\therefore \] \[k=\frac{\pi }{3}\] \[\Rightarrow \] \[\frac{2\pi }{\lambda }=\frac{\pi }{3}\] \[\lambda =6\,cm\] Separation between two consecutive nodes \[=\frac{\lambda }{2}=\frac{6}{2}=3\,cm.\]You need to login to perform this action.
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