AIIMS 2019 Physics Wave Equation MCQ Question

To find the tension $T$ in the string, we can use the wave equation $y = A \sin(\omega t - kx)$ where $\omega = 300 \, \text{rad/s}$ and $k = 15 \, \text{rad/m}$. The relationship between tension, mass density $\mu$, angular frequency, and wave number is given by the formula $T = \mu \omega^2 / k^2$. Substituting the values, we find $T = 0.1 \times (300)^2 / (15)^2 = 30 \, \text{N}$, confirming that option (A) is indeed the correct choice, while options (B) and (C) being marked as N/A indicate they are not valid answers.