A) 270 Hz
B) 540 Hz
C) 135 Hz
D) 370 Hz
Correct Answer: A
Solution :
The apparent frequency heard by observer is given by \[\text{3}\times \text{1}{{0}^{-\text{6}}}\] \[CaC{{l}_{2}}\] \[\text{MgS}{{\text{O}}_{\text{4}}}\]You need to login to perform this action.
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