Search any question & find its solution
Question:
Answered & Verified by Expert
A 5.5 metre length of string has a mass of $0.035 \mathrm{~kg}$. If the tension in the string is $77 \mathrm{~N}$, the velocity of the wave on the string is
Options:
Solution:
2123 Upvotes
Verified Answer
The correct answer is:
$40 \mathrm{~m} \mathrm{~s}^{-1}$
Here, $m=\frac{0.035}{5.5}, T=77 \mathrm{~N}$
$\therefore$ Velocity on the string is
$v=\sqrt{T / m}=\sqrt{\frac{77}{0.035 / 5.5}}=\sqrt{\frac{77 \times 5.5}{0.035}}=110 \mathrm{~m} \mathrm{~s}^{-1}$
$\therefore$ Velocity on the string is
$v=\sqrt{T / m}=\sqrt{\frac{77}{0.035 / 5.5}}=\sqrt{\frac{77 \times 5.5}{0.035}}=110 \mathrm{~m} \mathrm{~s}^{-1}$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.