A) 60 cm
B) 40 cm
C) 35cm
D) 25cm
Correct Answer: B
Solution :
\[y=a\,\sin \,2\pi \left( \frac{t}{0.04}-\frac{x}{40} \right)\] \[y=a\,\sin \,2\pi \left( \frac{t}{T}-\frac{x}{\lambda } \right)\] \[\frac{x}{\lambda }=\frac{x}{40}\] \[\lambda =40\,cm\]You need to login to perform this action.
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