Q 11-14-014NEETJEE MainEasy
A string $1$ m long is fixed at both ends. The speed of transverse waves on it is $200$ m/s. Its fundamental frequency is
Answer: (B) $100$ Hz
Concept. A string fixed at both ends has fundamental $f_1 = \dfrac{v}{2L}$.
Step 1. Substitute.
$$f_1 = \frac{200}{2 \times 1} = 100\ \text{Hz}$$
Answer. $100$ Hz (Option B).
Solution by Sreeraj P, M.Sc Physics