Question : The temperature of distant luminous bodies can be determined by
Option 1: Mercury Thermometers
Option 2: Gas Thermometers
Option 3: Pyrometers
Option 4: Colour Thermometers
Correct Answer: Pyrometers
Solution : The correct option is the Pyrometers .
Luminous objects are things like electric bulbs that produce or radiate light on their own. A particular kind of remote-sensing thermometer used to gauge the temperature of far-off objects is called a pyrometer. It is a device that, using the quantity of thermal radiation a surface emits, can be used to determine a surface's temperature from a distance. This procedure is known as pyrometry and radiometry.
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