| ⇦ | 
| ⇨ |
The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy from the block will increase approximately
Options
(a) 2 times
(b) 4 times
(c) 8 times
(d) 16 times
Correct Answer:
2 times
Explanation:
By Stefan’s law, E₂/E₁ = [(273 + 84)/(273 + 27)]⁴
⇒ E₁/E₁ = (357/300)⁴ = (119/100)⁴
⇒ E₁/E₁ = (1.19)⁴ ≈ 2.
Related Questions: - A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
- For a parallel beam of monochromatic light of wavelength λ diffraction is produced
- A proton of mass 1.6×10⁻²⁷ kg goes round in a circular orbit of radius 0.10 m under
- A high altitude, a body explodes at rest into two equal fragments with one fragment
- In which case positive work has to be done in seperating them?
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
- For a parallel beam of monochromatic light of wavelength λ diffraction is produced
- A proton of mass 1.6×10⁻²⁷ kg goes round in a circular orbit of radius 0.10 m under
- A high altitude, a body explodes at rest into two equal fragments with one fragment
- In which case positive work has to be done in seperating them?
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply