A) 100 cm
B) 2 cm
C) 5 cm
D) None of the above
Correct Answer: B
Solution :
Comparing the given equation with \[y=a\cos (\omega \,t-kx)\] We get \[k=\frac{2\pi }{\lambda }=\pi \] Þ l = 2cmYou need to login to perform this action.
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