A) 20cm
B) 40cm
C) 60 cm
D) None of these
Correct Answer: A
Solution :
The standard equation of transverse wave is \[y=a\sin 2\pi \left[ \frac{t}{T}-\frac{x}{\lambda } \right]\] ... (i) where \[\lambda \] is wavelength and a is amplitude. Given, equation is \[y=5\sin 2\pi \left[ \frac{t}{0.04}-\frac{x}{40} \right]\] ... (ii) Comparing Eqs. (i) and (ii), we get \[\frac{x}{\lambda }=\frac{x}{40}\] \[\Rightarrow \] \[\lambda =40\,cm\]You need to login to perform this action.
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