MCQ
The wavefronts of light coming from a distant source of unknown shape are nearly:
- ✓Plane.
- BElliptical.
- CCylindrical.
- DSpherical.
Wave travelling from a distant source always has plane wavefront.
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$\left[\text { Use } \mu_0=4 \pi \times 10^{-7} \mathrm{TmA}^{-1}\right]$
