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                                    At a certain instant, a stationary transverse wave is found to have maximum kinetic energy. The appearance of string at that instant is : (a) sinusoidal shape with amplitude A/3 (b) sinusoidal shape with amplitude A/2 (c) sinusoidal shape with amplitude A (d) straight line | 
                            
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Answer»  Correct option (d) straight line Explanation: In a transverse stationary wave on a string, when the particle passes their mean position, their velocity is maximum. Since, all particles pass their mean positions simultaneously, the string becomes straight when the kinetic energy is maximum.  | 
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