The correct answer is C. Platinum resistance thermometers.
Mercury thermometers are not accurate for scientific work because mercury is a liquid and can expand and contract with changes in temperature. Alcohol thermometers are also not accurate for scientific work because alcohol is a liquid and can expand and contract with changes in temperature. Thermoelectric thermometers are not accurate for scientific work because they are affected by magnetic fields.
Platinum resistance thermometers are the most accurate type of thermometer for scientific work. They are made of platinum, which is a metal that has a very stable resistance to electricity. When the temperature changes, the resistance of the platinum changes in a predictable way. This allows scientists to measure temperature very accurately.
Here is a
brief explanation of each option:- Mercury thermometers: Mercury thermometers are the most common type of thermometer. They work by measuring the expansion and contraction of mercury in a glass tube. Mercury thermometers are not very accurate for scientific work because mercury is a liquid and can expand and contract with changes in temperature.
- Alcohol thermometers: Alcohol thermometers work in the same way as mercury thermometers, but they use alcohol instead of mercury. Alcohol thermometers are not as accurate as mercury thermometers because alcohol is a liquid and can expand and contract with changes in temperature.
- Thermoelectric thermometers: Thermoelectric thermometers work by measuring the voltage that is generated when two different metals are connected together. Thermoelectric thermometers are not accurate for scientific work because they are affected by magnetic fields.
- Platinum resistance thermometers: Platinum resistance thermometers work by measuring the resistance of a platinum wire. When the temperature changes, the resistance of the platinum wire changes in a predictable way. This allows scientists to measure temperature very accurately.