2006-09-18 00:33:07 · 6 answers · asked by NURUL FATIN M 1 in Science & Mathematics ➔ Astronomy & Space
They use the relation between temperature and frequency of emission of light. Frequency can be measured using spectrometer or any other device.
2006-09-18 00:35:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
They calculate it and estimate it based on its color but, anything above a certain temperature is white, so the hottest temperature of the sun is unknown.
2006-09-18 07:22:29 · answer #2 · answered by Anonymous · 0⤊ 0⤋
by potential of radiation pyrometry, it being distant technique of measuring that based on the theory of black physique radiation. whilst some thing is heated at bigger temperatures, its shade modifications by potential of going to bigger & bigger temperature from black to crimson to yellow & white. shade matching with a heated twine or cloth enables in measuring distant temperatures by potential of protecting distant warm cloth interior the backgraoud.
2016-12-18 12:19:15 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Basically, by its color. We think red hot is really hot, but white hot is even hotter. Of course it is really more complicated than that. See the source for information about color temperature and black body radiators.
2006-09-18 02:50:44 · answer #4 · answered by campbelp2002 7 · 0⤊ 0⤋
By analyzing the spectrum given by sunlight
2006-09-18 00:35:42 · answer #5 · answered by Rohit_curious 2 · 1⤊ 0⤋
donno
2006-09-18 00:36:23 · answer #6 · answered by Ashu 3 · 0⤊ 4⤋