JEE Main 20199 Apr, Morning shiftPhysicsEasyOscillations and Waves185× since 2002
A string is clamped at both the ends and it is
vibrating in its 4th harmonic. The equation of the
stationary wave is Y = 0.3 sin(0.157x) cos(200pt).
The length of the string is : (All quantities are
in SI units.)