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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 conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- In the diagram shown in figure, match the following about weight
- B is doped in Si or Ge, then we will get
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- In the diagram shown in figure, match the following about weight
- B is doped in Si or Ge, then we will get
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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