defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Waves Wave Speed on a Stretched String
The equation of a wave on a string of linear mass density 0.04 kgm−1 is given by
\(\rm {y}=0.02({m}) \sin \left[2 \pi\left(\frac{{t}}{0.04({s})}-\frac{{x}}{0.50({m})}\right)\right]\)
The tension in the string is
1
4.0N
2
12.5N
3
0.5N
4
6.25N