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

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(0.157 x) cos(200πt). The length of the string is : (All quantities are in SI units.)

(1) 40 m (2) 80 m (3) 20 m (4) 60 m

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(0.157 x) cos(200πt).

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