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ValentinkaMS [17]
3 years ago
9

Which type of wave has a frequency just higher than violet visible light and is used by the skin to produce Vitamin D?

Physics
1 answer:
ANTONII [103]3 years ago
4 0
Ultraviolet rays can help us get vitamin D, but they can also damage or skin if w are exposed for too long.

Your answer is D.
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Science If you want to find the energy quantum of light, you multiply the frequency of the radiation (v) by "h". What is "h"?
weqwewe [10]

Answer:

"h" signifies Planck's constant

Explanation:

In the equation energy E = h X v

The "h" there signifies Planck's constant

Planck's constant is a value, that shows the rate at which the energy of a photon increases/decreases, as the frequency of its electromagnetic wave changes.

It was named after Max Planck who discovered this unique relationship between the energy of a light wave and its frequency.

Planck's constant, "h" is usually expressed in Joules second

Planck's constant = 6.62607015 \times 10^{-34}  J.s

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Sound waves actually travel much faster in water than air, but words and the direction of the noise are distorted.
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Answer:

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Answer:

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