Define light year please

1 answer:

6 0

Light year: a unit of astronomical distance that is equal to the distance light travels in one year.

Hope this helps! :D

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Why can light microscopes produce images in their natural color

Fiesta28 [93]

Answer:

The electron microscopes are uses the electron to produce the image of the any object.The area where the electron passes then that area appeaser white but on the other hand where the electron does not pass that area appears black.But this does not give any information about the color of light it shows only white and black areas.We also know that color is the property of photons ( light).So the microscopes does not produce color of the image.

6 0

3 years ago

Recently, astronomers have observed stars and other objects that orbit the center of the Milky Way Galaxy farther out than our S

Lesechka [4]

Answer:

That scenario can be explained by the idea of the contribution of dark matter on that point.

Explanation:

It can be explained through the idea of dark matter, this one was born to explain why stars (or any object) that were farther for the supermassive black hole in the center of the Milky Way galaxy didn't decrease it rotational velocity as it was expected according to equation 1.

$v = \sqrt{\frac{G M}{r}}$ (1)