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Standing wave motion

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Activity 6: Standing Wave Motion Date Performed /20 SCORE Activity No.6 STANDING WAVE MOTION INTRODUCTION If a uniform string of infinite length is subjected to a tension and one of its ends is given a vibrating motion perpendicular to the string, a moving disturbance in the form of a wave is generated and travels along the string. The motion of any particle of the string is at right angles to the undisturbed position of the string and the waves are transverse waves. The speed v of the wave is given by v = λf , (1) where f is the frequency and  is the wavelength of the wave. The speed v, in which the transverse wave travels along the string, is given by v= , (2) Where F is the stretching force or tension in the string and m is the mass of the string whose length is L. When a wave is reflected by a fixed point at the end of the string, the appearance of the resulting motion gives no evidence of two waves traveling in opposite directions. If the frequency is sufficiently great so that the eye cannot follow the motion, the string appears subdivided into a number of segments, as in the figures below. The points that remain always at rest are known as nodes and the points with maximum fluctuations are called antinodes. The vibration as a whole is called standing waves. A string vibrates with any frequency but it will vibrate with maximum amplitude if the frequency, the length of the string, and the speed of the waves in the string are so related that standing waves wi ...
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