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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
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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
- The mean radius of the earth is R, its angular speed on its own axis is ?
- If a spring of spring constant k stretched by a length x under tension T, the energy
- A solenoid 1.5 m long and 0.4 cm in diameter possesses 10 turns per cm length
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- A body undergoes no change in volume. Poisson’s ratio is
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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