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Paper 6Alternative to PracticalPractical1 marks
An experiment is conducted to compare the thermal radiation absorption of different materials.
Method
Experiment Method
In this experiment, various materials are placed at equal distances from a heat source. The temperature of each material is measured before and after exposure to the heat source.
| Material | Initial Temperature (°C) | Final Temperature (°C) |
|---|---|---|
| Black cloth | 20 | 60 |
| White cloth | 20 | 30 |
| Aluminum foil | 20 | 25 |
- a[1]
State Identify the independent variable in this experiment.
Aim for approximately 1 distinct marking point.
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