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Supriya, while doing an experiment in the science laboratory, kept a laboratory thermometer 'P' 10cm away on side of the flame of the candle. Her friend Riya kept a similar thermometer 'Q' 10cm above the flame of the candle. In which of the thermometers, 'P' or 'Q' the rise in temperature will be faster? Give reason for answer.?
Most Upvoted Answer
Supriya, while doing an experiment in the science laboratory, kept a l...
Thermometer 'Q' above the flame of the candle will show a faster rise in temperature
Explanation:
- Distance from the flame: Thermometer 'Q' is placed directly above the flame, while thermometer 'P' is placed on the side of the flame. This means that 'Q' is in closer proximity to the heat source, resulting in a faster rise in temperature.
- Convection: Heat transfer through convection occurs more rapidly in the upward direction due to the hot air rising. Thermometer 'Q' placed above the flame will experience faster convection currents carrying heat towards it, leading to a quicker increase in temperature.
- Radiation: Thermal radiation from the flame travels in straight lines in all directions. Thermometer 'Q' placed above the flame will receive more direct radiation compared to thermometer 'P' on the side, contributing to a faster rise in temperature.
- Conduction: While conduction can also play a role in heat transfer, the difference in distance between the thermometers and the flame is not significant enough to affect the rate of conduction significantly in this scenario.
Therefore, due to the closer proximity to the heat source, faster convection currents, direct radiation, and negligible difference in conduction, thermometer 'Q' placed above the flame of the candle will register a faster rise in temperature compared to thermometer 'P' placed on the side.
Community Answer
Supriya, while doing an experiment in the science laboratory, kept a l...
Please!! answer my question
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Supriya, while doing an experiment in the science laboratory, kept a laboratory thermometer 'P' 10cm away on side of the flame of the candle. Her friend Riya kept a similar thermometer 'Q' 10cm above the flame of the candle. In which of the thermometers, 'P' or 'Q' the rise in temperature will be faster? Give reason for answer.?
Question Description
Supriya, while doing an experiment in the science laboratory, kept a laboratory thermometer 'P' 10cm away on side of the flame of the candle. Her friend Riya kept a similar thermometer 'Q' 10cm above the flame of the candle. In which of the thermometers, 'P' or 'Q' the rise in temperature will be faster? Give reason for answer.? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Supriya, while doing an experiment in the science laboratory, kept a laboratory thermometer 'P' 10cm away on side of the flame of the candle. Her friend Riya kept a similar thermometer 'Q' 10cm above the flame of the candle. In which of the thermometers, 'P' or 'Q' the rise in temperature will be faster? Give reason for answer.? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Supriya, while doing an experiment in the science laboratory, kept a laboratory thermometer 'P' 10cm away on side of the flame of the candle. Her friend Riya kept a similar thermometer 'Q' 10cm above the flame of the candle. In which of the thermometers, 'P' or 'Q' the rise in temperature will be faster? Give reason for answer.?.
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