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JEE · NEET Previous Year Question

$If the temperature of a black body be increased from 27 to 327 the radiation emitted increases by a fraction of$

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

A $16$
B $8$
C $4$
D $2$

Correct answer: A

Solution

(a) \frac{E _{2}}{E _{1}} = \frac{T _{2}^{4}}{T _{1}^{4}} = (\frac{237 + 227}{273 + 27})^{4} = (\frac{600}{300})^{4} = 16

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