The diagram above shows a maximum and minimum thermometer divided into three portions P, Q and R. Which of the following is true about the respective content of P,Q and R
The Six's maximum and minimum thermometer uses a liquid-filled bulb connected to a U-shaped tube with a mercury thread. As the liquid expands or contracts, the mercury moves, pushing the steel indexes to indicate the maximum and minimum temperatures, which can be reset using a magnet.
There is an explanation video available below.
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