The inverse square law of intensity i-e- the intensity -1-r2 is valid for a

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Standard XII

Physics

Radius of Gyration

The inverse s...

Question

The inverse square law of intensity (i.e., the intensity $α \frac{1}{r^{2}}$ ) is valid for a

point source

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line source

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plane source

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cylindrical source

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Solution

The correct option is A point source
The inverse square law of intensity is valid only for point source $I n t e n s i t y \propto \frac{1}{r^{2}}$
and for line or plane or cylindrical source, it varies inversely with distance i.e. $I n t e n s i t y α 1 / r$

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The inverse square law of intensity (i.e., the intensity α1r2 ) is valid for a

The correct option is A point sourceThe inverse square law of intensity is valid only for point source Intensity∝1r2and for line or plane or cylindrical source, it varies inversely with distance i.e. Intensity α 1/r

The inverse square law of intensity (i.e., the intensity $α \frac{1}{r^{2}}$ ) is valid for a

The correct option is A point source
The inverse square law of intensity is valid only for point source $I n t e n s i t y \propto \frac{1}{r^{2}}$
and for line or plane or cylindrical source, it varies inversely with distance i.e. $I n t e n s i t y α 1 / r$