| ⇦ | 
| ⇨ |
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: - Two discs of same material and thickness have radii 0.2 m and 0.6 m.
- P-type semiconductors are made by adding impurity element
- A cyclist is riding with a spped of 27 km/h.As he approaches a circular turn
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- A block of mass m is moving on a wedge with the acceleration aᵒ
Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two discs of same material and thickness have radii 0.2 m and 0.6 m.
- P-type semiconductors are made by adding impurity element
- A cyclist is riding with a spped of 27 km/h.As he approaches a circular turn
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
- A block of mass m is moving on a wedge with the acceleration aᵒ
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