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5.3 Black body radiation

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Question 3

An infrared sensor is used to compare two heating panels in an animal enclosure. The panels are at the same temperature and the same distance from the sensor. The background reading is 5 units. The sensor records 50 units for panel X and 25 units for panel Y, including the background.

What fraction of panel X's corrected reading is panel Y's corrected reading?

[1]
A

49\dfrac{4}{9}94​

B

25\dfrac{2}{5}52​

C

12\dfrac{1}{2}21​

D

59\dfrac{5}{9}95​

Markscheme

5.3 Black body radiation Questions

  1. GCSE
  2. /Physics
  3. /5.3 Black body radiation

96 exam-style questions on Edexcel GCSE Physics 5.3 Black body radiation, covering 5.3.1 Emission of radiation and temperature, 5.3.2 Radiation balance and constant temperature, and 5.3.3 The temperature of the Earth. Each one has a worked solution and a mark scheme showing where the marks go.

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