MHT CET · Physics · Thermal Properties of Matter
Black sphere of radius R radiates power P at certain temperature T . If the temperature is doubled, the radius gets doubled. Now the power radiated would be
- A 4 P
- B 8 P
- C 16 P
- D 64 P
Answer & Solution
Correct Answer
(D) 64 P
Step-by-step Solution
Detailed explanation
\( P = \sigma (4 \pi R^2) T^4 \) \( P' = \sigma (4 \pi (2R)^2) (2T)^4 \)
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