Thermal radiation and energy balance

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Question 10
Easy

Figure 1 shows two identical aluminium plates, X and Y, placed at equal distances from an infrared heater. Plate X is painted matt black and Plate Y is painted shiny silver.

A diagram showing a central infrared heater with two metal plates placed at equal distances on either side. Plate X on the left is shaded dark black and labeled 'matt black'. Plate Y on the right is shaded light grey and labeled 'shiny silver'. Both plates have temperature sensors attached.

The heater is switched on, and the temperature of each plate is monitored with a sensor.

Explain why the temperature of Plate X increases at a faster rate than the temperature of Plate Y.

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Thermal radiation and energy balance Questions

  1. GCSE
  2. /Physics
  3. /Thermal radiation and energy balance