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The solid angle substended at any point ...

The solid angle substended at any point inside the surface due to small area ds is given by

A

`(dscostheta)/(r^(2))`

B

`(dsr^(2))/(costheta)`

C

`dscosthetar^(2)`

D

`(r^(2))/(dscostheta)`

Text Solution

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The correct Answer is:
A
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