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in Physics by (69.2k points)

A string 2.0 m long and fixed at its ends is driven by a 240 Hz vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency is :

(1)  320 m/s, 80 Hz

(2)  180 m/s, 120 Hz

(3)   320 m/s, 120 Hz

(4)  180 m/s, 80 Hz

1 Answer

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Best answer

Correct option  (1) 320 m/s, 80 Hz 

Explanation:

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