SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do we use the entire electromagnetic spectrum to study space?
A
Because the visible spectrum is such a small part of light we are missing out by not doing so.
B
So we can determine the direction galaxies are moving
C
So we can understand the nature of time.
D
So we can see the composition of galaxies
Explanation: 

Detailed explanation-1: -Telescopes use lenses or mirrors to collect and focus waves from the electromagnetic spectrum, including visible light, allowing us to look at celestial objects. By studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, astronomers can better understand the universe.

Detailed explanation-2: -All electromagnetic radiation is light, but we can only see a small portion of this radiation-the portion we call visible light. Cone-shaped cells in our eyes act as receivers tuned to the wavelengths in this narrow band of the spectrum.

Detailed explanation-3: -The Earth’s atmosphere absorbs ultraviolet light, so ultraviolet astronomy must be done using telescopes in space.

Detailed explanation-4: -Visible light is extremely important to humans, we use it TO SEE! Without light, our eyes would not be able to see images of anything. Aside from sight, there are other important uses for visible light. We concentrate visible light to make lasers to use in everything from surgery, to CD players to laser pointers.

Detailed explanation-5: -The reason that the human eye can see the spectrum is because those specific wavelengths stimulate the retina in the human eye.

There is 1 question to complete.