A) 4 beats per second with intensity ratio 81:1 between waxing and waning
B) 4 beats per second with intensity ratio 25 : 16 between waxing and waning
C) 8 beats per second with intensity ratio 25 : 16 between waxing and waning
D) 8 beats per second with intensity ratio 81: 1 between waxing and waning
Correct Answer: A
Solution :
\[\frac{{{I}_{1}}}{{{I}_{2}}}=\frac{({{A}_{1}}+{{A}_{2}})}{({{A}_{1}}-{{A}_{2}})}=\frac{81}{1}\] Beat frequency = 304 - 300 = 4 Hz.You need to login to perform this action.
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