wave_mechanics critical_thinking Question 28
Question: 16 tunning forks are arranged in the order of increasing frequencies. Any two successive forks give 8 beats per sec when sounded together. If the frequency of the last fork is twice the first, then the frequency of the first fork is
[CBSE PMT 2000; MP PET 2001]
Options:
A) 120
B) 160
C) 180
D) 220
Show Answer
Answer:
Correct Answer: A
Solution:
Using nLast = nFirst + (N ? 1)x
Therefore 2n = n + (16 ? 1) ´ 8
Therefore n = 120 Hz
BETA
