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The intensity of light at a distance 'r'...

The intensity of light at a distance 'r' from the axis of a long cylindrical source is inversely proportional to 'r'

A

`l prop 1/r^2`

B

`l prop 1/r`

C

`l prop r^0`

D

`l prop 1/r^3`

Text Solution

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The correct Answer is:
B
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