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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 block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
- Infinite number of masses, each 1 kg, are placed along the x-axis
- Pascal-second has the dimensions of
- If the lattice parameter for a crystalline structure is 3.6 Å, then the atomic radius
- A particle executing simple harmonic motion of amplitude 5 cm has maximum
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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