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

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics14. waves and sound1 Mark
MCQ
In a wave motion $y = a\sin (kx - \omega t)$, $y$ can represent
  • A
    Electric field
  • B
    Magnetic field
  • C
    Displacement
  • ✓
    All of the above.
✓

Answer

Correct option: D.
All of the above.
d
(d) In case of sound wave, $y$ can represent pressure and displacement, while in case of an electromagnetic wave it represents electric and magnetic fields.

(In general $y$ is any general physical quantity which is made to oscillate at one place and these oscillations are propagated to other places also).

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