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1. Write a note on laboratory thermometer. 2. Write the precautions to be following while using a laboratory thermometer. |
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Answer» (a) Laboratory Thermometers: 1. Laboratory thermometers are used to measure the temperature in school and other laboratories for scientific research. 2. They are also used in the industry as they can measure temperatures higher than what clinical thermometers can record. 3. The stem and the bulb of a lab thermometer are longer when compared to that of a clinical thermometer and there is no kink in the lab thermometer. 4. A laboratory thermometer has only the Celsius scale ranging from -10°C to 110°C. (b) Precautions to be Followed While Using a Laboratory Thermometer: 1. Do not tilt the thermometer while measuring the temperature. Place it upright. 2. Note the reading only when the bulb has been surrounded by the substance from all sides. |
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