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14. waves and sound — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics14. waves and sound1 Mark
MCQ
A progressive wave travelling in positive by $x-$ direction given by $y = a\, sin (kx -\omega t)$ meets fixed end at $x = 0$. The reflected wave may be given by
  • A
    $y = -a\, sin (kx - \omega t)$
  • ✓
    $y = a\, sin (kx + \omega t)$
  • C
    $y = a\, sin (\omega t - kx)$
  • D
    $y = -a\, sin (kx + \omega t)$
✓

Answer

Correct option: B.
$y = a\, sin (kx + \omega t)$
b

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