Wave Mechanics Question 734
Question: If you set up the seventh harmonic on a string fixed at both ends, how many nodes and antinodes are set up in it
[AMU 2000]
Options:
A) 8, 7
B) 7, 7
C) 8, 9
D) 9, 8
Show Answer
Answer:
Correct Answer: A
Solution:
String will vibrate in 7 loops so it will have 8 nodes 7 antinodes. Number of harmonics = Number of loops = Number of antinodes
Therefore Number of antinodes = 7 Hence number of nodes = Number of antinodes + 1 $ =7+1=8 $
BETA
