Explain why the sky is blue

What will be an ideal response?


Answer: Nitrogen and oxygen molecules in the atmosphere scatter light of high frequencies more than light of low frequencies. When sunlight encounters the atmosphere, light is scattered by molecules that make up the atmosphere. Violet and blue light are scattered the most by atmospheric molecules, and because our range of vision better sees blue than violet, the sky looks blue to us.

Physics & Space Science

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What type of telescope is the Hubble Space Telescope?

A) refractor B) prime focus C) Newtonian D) Cassegrain E) Nasmyth/Coude

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A helium balloon rises because of __________ principle

Fill in the blank(s) with correct word

Physics & Space Science

The jovian planets

A) all lie less than 5 AU from the Sun. B) all have rings around their equators. C) all spin slower than the Earth. D) have satellite systems with less than 4 moons. E) are all much more dense than any of the terrestrials planets.

Physics & Space Science

Energy provided directly from Earth's interior is called

a. groundwater energy. b. geothermal energy. c. artesian energy. d. thermionic energy.

Physics & Space Science