Date | May 2017 | Marks available | 1 | Reference code | 17M.1.SL.TZ2.29 |
Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
Command term | Question number | 29 | Adapted from | N/A |
Question
A room is at a constant temperature of 300 K. A hotplate in the room is at a temperature of 400 K and loses energy by radiation at a rate of P. What is the rate of loss of energy from the hotplate when its temperature is 500 K?
A. \(\frac{{{4^4}}}{{{5^4}}}\)P
B. \(\frac{{{5^4} + {3^4}}}{{{4^4} + {3^4}}}\)P
C. \(\frac{{{5^4}}}{{{4^4}}}\)P
D. \(\frac{{{5^4} - {3^4}}}{{{4^4} - {3^4}}}\)P
Markscheme
D
Examiners report
[N/A]
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