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pickupchik [31]
3 years ago
7

Why do materials absorb some frequencies of electromagnetic radiation and not others?

Physics
1 answer:
AlekseyPX3 years ago
8 0
Well energy absorption by a material depends upon their atomic properties. Energy is absorbed in discrete quanta of energy as predicted by quantum mechanics only if the corresponding energy state is available either it is absorbed by electrons or nucleus depends whether it can go to permissible energy state, if not system can't absorb energy at all. 
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aliya0001 [1]

Answer: 3.2

Explanation:

pH is the measure of acidity or alkalinity of a solution.

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Thus as pH and H^+ are inversely related, a solution having lower pH will have more amount of H^+ concentration. And a solution having more pH will have less amount of H^+ concentration.

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IRISSAK [1]

Answer:

Explanation:

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In the last case

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