13 The vibration of a string is represented by cos 48nt where x and y are in cm y 5 sin TX 15 and t in second then amplitude of

Question

13 The vibration of a string is represented by cos 48nt where x and y are in cm y 5 sin TX 15 and t in second then amplitude of the superposing wave is Acos ut A 2A sinkx 1 1 25 m 3 10 cm In a closed organ pipe the firnt 2 5 cm 4 2 5 cm Z 72 155 Nz 19 19 Which of the fol 1 y Asinkxs 205 5 2 y Asin T a 3 y Acosk vf 4 y Acos 2wt

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