The expression for pointing vector of an isotropic point source at a d – McqOptions

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1.	The expression for pointing vector of an isotropic point source at a distance ‚Äö√Ñ√∂‚àö√ë‚àö‚â§r‚Äö√Ñ√∂‚àö√ë‚àö¬• from the source is given by:$
A.	P/ 4‚âà√¨‚àö√ëR<sup>2</sup>
B.	P/4‚âà√¨‚àö√ë
C.	P/ 4‚âà√¨‚àö√ëR
D.	P‚Äö√†√∂‚àö‚â•4‚âà√¨‚àö√ëR<sup>2</sup>
Answer» B. P/4‚âà√¨‚àö√ë

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