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 a reason for your answer.
Thermometers B will show a greater rise in temperature because hot air rises up from candle which burns due to convection.