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Estimation of frequency of a wave forming a standing wave represented by `y = A sin kx cos t` can be done if the speed and wavelength are known using `speed = "Frequency" xx "wavelength"` . Speed of motion depends on the medium properties namely tension in string and mass per unit length of string . A string may vibrate with different frequencies . The corresponding wavelength should be related to the length of the string by a whole number for a string fixed at both ends . Answer the following questions: Speed of a wave in a string forming a stationary wave does not depend onA. TensionB. Mass of wire for a given lengthC. Length of the wire for a given massD. Harmonics of string |
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Answer» Correct Answer - D Speed , `V = sqrt((T)/((m//l)))` , So it is dependent on tension , mass of the string and its length. |
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