A) 7
B) 6
C) 5
D) 3.5
Correct Answer: B
Solution :
Resulting amplitude of two interfering waves \[A=\sqrt{a_{1}^{2}+a_{2}^{2}+2{{a}_{1}}{{a}_{2}}\cos \phi }\] Here,\[\phi =\pi /3,\,\,{{a}_{1}}=4,\,\,{{a}_{2}}=3\] \[\Rightarrow \] \[A\simeq 6\]You need to login to perform this action.
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