A) 80 and 40
B) 100 and 50
C) 44 and 22
D) 72 and 36
Correct Answer: D
Solution :
Using nLast = nFirst + (N ? 1)x where N = Number of tuning fork in series x = beat frequency between two successive forks Þ 2n = n + (10 ? 1) ´ 4 Þ n = 36 Hz \ nFirst = 36 Hz and nLast = 2 ´ nFirst = 72 HzYou need to login to perform this action.
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