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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
- A magnet of length 10 cm and magnetic moment 1 A-m² is placed
- At what angle should the two forces 2P and √2 P act,so that the resultant force is P√10?
- The S.I. unit of electric flux is
- An inductor coil is connected to a 12 V battery and drawing a current 24 A. This coil
- Assertion(A) :The change in kinetic energy of a particle is equal to the work done
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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