A) 3 seconds fast
B) 3 seconds slow
C) 6 seconds fast
D) 6 seconds slow
Correct Answer: D
Solution :
[d] Time lost in covering the distance of 2 km by the second waves \[t=\frac{d}{v}=\frac{2000}{330}=6.06\,\sec \approx \,\,6\,\sec .\]
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