1. Tardigrade
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  3. Physics
  4. A light wave is travelling along -Y direction. For this light wave, which of the following equations of planes may represent its wavefront.

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Q. A light wave is travelling along $-Y$ direction. For this light wave, which of the following equations of planes may represent its wavefront.

Wave Optics

Solution:

As light is travelling along $Y$ direction $(+$ or $-)$, its wavefront must be parallel to $XZ$ plane as wavefront is always normal to the direction of propagation of light, hence only option $(C)$ can be correct.