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Waves question

2013 · Shift 1 · Q57
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Waves question

2013 · Shift 1 · Q57

JEE AdvancedPhysicsWavesMultiple correct+4 / −2
A horizontal stretched string, fixed at two ends, is vibrating in its fifth harmonic according to the equation y(x, t) = (0.01 m) sin[(62.8 m −-− 1)x] cos[(628 s −-− 1)t] Assuming π\piπ = 3.14, the correct statement(s) is(are)
  1. A
    The number of nodes is 5.
  2. B
    The length of the string is 0.25 m.
  3. C
    The maximum displacement of the mid-point of the string, from its equilibrium position is 0.01 m.
  4. D
    The fundamental frequency is 100 Hz.
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