Physics, 01.08.2019 21:00 kiyahlove7537

Refraction or the bending of waves takes place when a light wave changes a) color. b) frequency. c) intensity. d) speed.

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Answer from: lyn94

The answer is D. speed

Answer from: staz13wiggins

Option (D)

Explanation:

Refraction is defined as the process by which a wave changes its direction of propagation and bends towards the normal when moves from a rarer medium to a denser medium. The light after entering the new medium bends towards the normal. This process takes place due to the change in the wave speed and also due to the change in its wavelength.

As the waves enter a denser medium (such as glass) from the rarer medium (such as air), the wave speed decreases and so its wavelength also decreases. The speed and wavelength here are directly proportional to each other. It is because there are more particles in the denser medium that obstructs the direction of wave propagation.

Thus, the correct answer is an option (D).

Answer from: Quest

answer: point c: b. 1/2 potential, 1/2 kinetic, point a: 3/4 of its potential energy, point d or b: 3/4 potential, 1/4 kinetic

explanation: i cant explain. it's difficult to explain.

How much of the roller coaster's kinetic and/or potential energy is at the following points? (pick

Answer from: Quest

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by mathematical calculations before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of uranus led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.

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Refraction or the bending of waves takes place when a light wave changes a) color. b) frequency. c)...