In Isotropic radiation, which of the following vector component is absent in pointing vector?

In Isotropic radiation, which of the following vector component is absent in pointing vector? Correct Answer Both \(\widehat{a_\theta} \,and\, \widehat{a_\emptyset} \)

Isotropic radiators will radiate power equally in all directions. Due to this symmetrical distribution, components of θ, Φ get cancelled. So it will have only radial component.
Bissoy MCQ

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