標題:
Physics Questions (Heat)
發問:
1. A fault thermometer with unform scale reads 10℃ and 90℃ when it is placed in melting ice and sterm over bolng water respectively.what should be the true temperature if the thermometer reads 40℃? The answer is 37.5℃. How can I get the answer? 2. Clinical thermometers are designed... 顯示更多 1. A fault thermometer with unform scale reads 10℃ and 90℃ when it is placed in melting ice and sterm over bolng water respectively.what should be the true temperature if the thermometer reads 40℃? The answer is 37.5℃. How can I get the answer? 2. Clinical thermometers are designed for medical use. Other thermometers(sometimes called '' ordinary' therometers) are made for general laboratory use. Describe two important differences between a clincal thermometer and an 'ordinary' thermometer. Thanks!!
最佳解答:
1. The difference between melting point ( 0'C) and boiling point (100'C) in the faulty thermometer = (90 - 10)'C = 80 'C SInce a reading of 40'C on the faulty thermometer is (40-10)'C = 30'C above melting point, the true temperature = (30/80) x 100'C = 37.5'C 2. (i) there is a restriction in a clinical thermometer that prevent the mercury thread to fall rapidly, but none on a laboratory thermometer. (ii) the temperature range to be measured is much wider on a laboratory thermometer, but is only limited to a small range around normal body temperature in a clinical thermometer.
Physics Questions (Heat)
發問:
1. A fault thermometer with unform scale reads 10℃ and 90℃ when it is placed in melting ice and sterm over bolng water respectively.what should be the true temperature if the thermometer reads 40℃? The answer is 37.5℃. How can I get the answer? 2. Clinical thermometers are designed... 顯示更多 1. A fault thermometer with unform scale reads 10℃ and 90℃ when it is placed in melting ice and sterm over bolng water respectively.what should be the true temperature if the thermometer reads 40℃? The answer is 37.5℃. How can I get the answer? 2. Clinical thermometers are designed for medical use. Other thermometers(sometimes called '' ordinary' therometers) are made for general laboratory use. Describe two important differences between a clincal thermometer and an 'ordinary' thermometer. Thanks!!
最佳解答:
1. The difference between melting point ( 0'C) and boiling point (100'C) in the faulty thermometer = (90 - 10)'C = 80 'C SInce a reading of 40'C on the faulty thermometer is (40-10)'C = 30'C above melting point, the true temperature = (30/80) x 100'C = 37.5'C 2. (i) there is a restriction in a clinical thermometer that prevent the mercury thread to fall rapidly, but none on a laboratory thermometer. (ii) the temperature range to be measured is much wider on a laboratory thermometer, but is only limited to a small range around normal body temperature in a clinical thermometer.
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