Question

How does the electromagnetic spectrum relate to a grouping of stars based on color?

Answer 1

• From different wavelengths we can create a electromagnetic spectrum .
• From spectral lines of that electromagnetic spectrum astronomers can determine the element in the farther universe (star).
• They can also determine the temperature and density of that element in the star.
• The spectral lines in the electromagnetic spectrum tell us about any magnetic field of the star.

A useful formula of wavelength:

$\\ \sf\longmapsto \lambda=\dfrac{c}{v}$

• wavelength is the length 7 of wave having SI unit lambda

Answer 2

Explanation:

Objects in the universe send out an enormous range of electromagnetic radiation. Scientists call this range the electromagnetic spectrum, which they have divided into a number of categories

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