Wave Mechanics Vibration Of String Question 29
Question: A string in musical instrument is 50 cm long and its fundamental frequency is 800 Hz. If a frequency of 1000 Hz is to be produced, then required length of string is
[AIIMS 2002]
Options:
A) 62.5 cm
B) 50 cm
C) 40 cm
D) 37.5 cm
Show Answer
Answer:
Correct Answer: C
Solution:
$ n _{1}l _{1}=n _{2}l _{2}\Rightarrow 800\times 50=1000\times l _{2}\Rightarrow l _{2}=40 $
$ cm $
BETA
