An infrared thermometer measures temperature by detecting infrared radiation emitted by objects. It allows non-contact temperature measurement, making it useful for both industrial and medical purposes.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Digital thermometers use electronic sensors to measure temperature and display the reading on a digital screen. They are fast, accurate, and commonly used in medical, industrial, and household applications.
The Kelvin scale is important in science because it starts at absolute zero, providing a direct measure of thermal energy. It is used in scientific calculations and studies involving temperature.
Mercury thermometers are being phased out due to the toxicity of mercury. If broken, mercury can pose serious health and environmental risks.
Liquid-in-glass thermometers work by using the expansion and contraction of a liquid, like mercury or alcohol, inside a glass tube. The liquid’s level rises or falls as temperature changes.