Physics And Measurement Question 302
Question: The frequency (f) of a wire oscillating with a length , in p loops, under a tension T is given by where linear density of the wire. If the error made in determining length, tension and linear density be 1%, -2% and 4%, then find the percentage error in the calculated frequency
Options:
A) - 4%
B) - 2%
C) - 1%
D) - 5%
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Given
Taking log of both sides
Differentiating partially on both sides,
or