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2021 BGCSE Physics Paper-1 Question-36
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Q-50
The diagram shows a simplified model of a solar heater, which uses energy from the sun to heat water. What is the reason for the painting the panel in the solar collector black? To
improve the rate of absorption of infrared radiation
improve the rate of emission of infrared radiation
reduce heat loss by convection currents
reduce the heater's conduction properties
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