A) 242/252
B) 2
C) 5/6
D) 11/6
Correct Answer: B
Solution :
In both the cases observer is moving towards, the source. Hence by using \[{n}'=n\left( \frac{v+{{v}_{0}}}{v} \right)\] When passenger is sitting in train A, then \[5.5=5\left( \frac{v+{{v}_{A}}}{v} \right)\] ?(i) when passenger is sitting in train B, then \[6=5\left( \frac{v+{{v}_{B}}}{v} \right)\] ?(ii) On solving equation (i) and (ii) we get \[\frac{{{v}_{B}}}{{{v}_{A}}}=2\]You need to login to perform this action.
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