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Mashutka [201]
3 years ago
15

What do scientists use to determine the temperature of a star?

Physics
2 answers:
larisa86 [58]3 years ago
7 0

Answer:

Color

Explanation:

The most common way of determine the temperature of a star is by studying its spectrum. The light coming from the star is measured in two filters: red and blue. The ratio of the two readings give us the temperature of the stars.

Cooler stars will appear red in color and hotter stars will appear blue.

For a layman if the star is blue it is a hot star and if its red it is a cold star.

Vera_Pavlovna [14]3 years ago
4 0
Thermal Imaging. Hope it helps.
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m_a_m_a [10]

Answer:

The electromagnetic waves appear more blue in color.

Explanation:

Doppler's Effect: When a source moves with respect to the observer the frequency of the wave emitted from the source changes. If the source moves away from the observer, the frequency decreases and wavelength increases and vice versa.

Here the light source is moving towards the observer so the frequency will increase and wavelength will decrease. Thus the spectrum will shift towards the blue part. This is known as blue shift. The light wave will appear blue in color.

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Answer:

Friction is a force that opposes motion.

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