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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: - A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
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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
- A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
- The input resistance of a silicon transistor is 100 W. Base current is changed
- When there is no heat change from surroundings in a system, then the process
- A double slit experiment is performed with light of wavelength 500 nm. A thin film
- 3 persons are initially at the 3 corners of an equilateral triangle
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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