A) 6 cm
B) 4 cm
C) 3 cm
D) 1.5 cm
Correct Answer: C
Solution :
Given \[y=5\,\sin \,\frac{\pi x}{3}\,\cos \,40\pi t\] Comparing with \[y=2a\cos \,\frac{2\pi \nu t}{\lambda }\,\sin \,\frac{2\pi x}{\lambda }\] \[\Rightarrow \,\,\,\lambda =6\,cm\] Therefore the separation between adjacent nodes \[\Rightarrow \,\,\,\frac{\lambda }{2}=3\,cm\]You need to login to perform this action.
You will be redirected in
3 sec