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Questions  >>  CBSE XII  >>  Physics  >>  Electromagnetic waves
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The electric field intensity produced by the radiation coming from $100\;w$ bulls at a $3\;m$ distance is E. The electric field intensity produced by the radiation coming from 50 w bulb at the same distance is :

$\begin{array}{1 1} E/2 \\ 2E \\ E \sqrt 2 \\ \sqrt 2 E \end{array} $

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