Read the assertion and reason carefully to mark the correct option ...

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Read the assertion and reason carefully to mark the correct option out of the options given below:
\( \mathrm{P} \)
(a) If both assertion and reason are true and the reason is the
W correct explanation of the assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c) If assertion is true but reason is false.
(d) If the assertion and reason both are false.
(e) If assertion is false but reason is true.
Assertion : The radiation from the sun's surface varies as the fourth power of its absolute temperature.

Reason : The sun is not a black body. [AIIMS 1999]
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