Question

A laboratory thermometer A is kept 7 cm away on the side of the flame while a similar thermometer B is kept 7 cm above the flame of a candle as shown in Figure 4.5.

Which of the thermometers, A or B, will show a greater rise in temperature? Give reason for your answer.

Answer 1

Thermometer B will show a greater rise in temperature because hot air rises up or air on the top of the candle flame is getting heated by convection.