Wave Motion 4 Question 10
10. A vibrating string of certain length
(a) 344
(b) 336
(c) 117.3
(d) 109.3
Show Answer
Answer:
Correct Answer: 10. (a)
Solution:
- With increase in tension, frequency of vibrating string will increase. Since number of beats are decreasing. Therefore, frequency of vibrating string or third harmonic frequency of closed pipe should be less than the frequency of tuning fork by 4 .
