Wave Mechanics Question 702
Question: The equation $ y=0.15\sin 5x\cos 300t $ , describes a stationary wave. The wavelength of the stationary wave is
[MP PMT 1995]
Options:
A) Zero
B) 1.256 metres
C) 2.512 metres
D) 0.628 metre
Show Answer
Answer:
Correct Answer: B
Solution:
On comparing the given equation with standard equation $ \frac{2\pi }{\lambda }=5 $
Therefore $ \lambda =\frac{6.28}{5}=1.256m $
BETA
