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A black body is at 727⁰C. It emits energy at a rate which is proportional to
Options
(a) (1000)⁴
(b) (1000)²
(c) (727)⁴
(d) (727)²
Correct Answer:
(1000)⁴
Explanation:
According to Stefan’s law, E α T⁴
E α (t + 273)⁴ K [723⁰C = (727 + 273)K]
E α (727 + 273)⁴ K
E α (1000)⁴ K
Related Questions: - Zenor breakdown will occur if
- A parallel plate condenser has a uniform electric field E(V/m) in the space between
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Zenor breakdown will occur if
- A parallel plate condenser has a uniform electric field E(V/m) in the space between
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
- If oxygen has root mean square velocity of C m/s, then root mean square velocity of H
- Two thin long conductors seprated by a distance d carry currents
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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