Question 9
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.
Which of the thermometers, A or B, will show a greater rise in temperature? Give reason for your answer.
Thermometer B will show a greater rise in temperature because hot air rises up and increases the temperature of the thermometer which is above the flame of a candle.