A laboratory thermometer A is kept 7 cm away on the side of the flame while a similar thermometer B ...

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.

Question 18 Image - NCERT Exemplar Solutions - Science - class 7 chapter Heat

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

Accepted Answer

Answer is image b Explanation Air near candle gets heated up and after this it rises by convection so the thermometer B will receive more heat than the thermometer A So according to the given condition thermometer B will show a greater rise in temperature

NCERT Exemplar Solutions Class 7 Science Solutions for Heat - Exercise in Chapter 4 - Heat