SECTION 3 (Maximum Marks: 15)
• This section contains FIVE questions.
• The answer to each question is a SINGLE DIGIT INTEGER ranging from 0 to 9, both inclusive.
• For each question, marks will be awarded in one of the following categories:
Full Marks : +3 If only the bubble corresponding to the correct answer is darkened. Zero Marks : 0 In all other cases.
A metal is heated in a furnace where a sensor is kept above the metal surface to read the power radiated (P) by the metal. The sensor has a scale that displays log 2 (P/Po), where P 0 is a constant. When the metal surface is at a temperature of 487°C, the sensor shows a value 1. Assume that the emissivity of the metallic surface remains constant. What is the value displayed by the sensor when the temperature of the metal surface is raised to 2767 °C?
Text Solution
Verified by Experts9
(9)
Power radiated 
At 487°C; 
...(i)
Given, 
At 2767°C; 
Reading 
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems