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(chatquestion)...omentors.online A pipe open at both ends produces a frequency f1. When the pipe is kept with th of Its Jength it water, it produced a note of frequency f. 12 note of 12 । ५ The ratio h is आतति 3. (a) 4 (b) (c) 2 (d) 2 13 The fundamental frequency of a closed pipe is 220 Hz. 13 If of the pipe is filled with water, the frequency of एक पाइप the first overtone of the pipe now is की (a) 220 Hz (b) 440 Hz (c) 880 Hz (d) 1760 Hz 14 The equation of stationary wave along a stretched 14 string is given by y = 5 sin- TOX cos 40 zt where x and y are 3 in centimetre and t in second. The separation between two adjacent nodes is : (b) 4 cm (a) 6 cm (d) 1.5 cm (c) 3 cm A bus is moving with a velocity of 5 m/s towards a huge wall, the driver sounds a horn of frequency 165 Hz. If the speed of sound in air is 355 m/s, the number of beats heard per second by a passenger on 15 15 the bus will be (a) (b) 5 (c) (d) 4. iome 6 Two identical sinusoidal waves each of amplitude 5 mm with a phạse difference of TE/2 are travelling in the same direction in a string. The amplitude of the resultant wave (in mm) is (a) 16 Žero 5/2

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