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A black body at a temperature of 227⁰C radiates heat at a rate of 20 cal m⁻²s⁻¹. When its temperature is raised to 727⁰C, the heat radiated by it in cal m⁻²s⁻¹ will be closest to
Options
(a) 40
(b) 160
(c) 320
(d) 640
Correct Answer:
320
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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
- When a metallic surface is illuminated with radiation of wavelength λ,
- A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V
- A particle is dropped vertically from rest, from a height.The time taken by it to fall
- Radioactivity of a sample at T₁ time is R₁ and at time T₂ is R₂. If half-life
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
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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