Moderate

X-rays are immediately absorbed by:

Correct answer: D. Lead

  • A. Aluminum
  • B. Paper
  • C. Copper
  • D. Lead

Explanation

Dense substances are good absorbers of radiations like x-rays. They contain large electronic clouds and require a lot of energy to have their electrons knocked off. Hence, x-rays do not ionize these substances, instead, the radiations get absorbed by them. Out of the given substances, lead is a good choice of absorbers for x-rays as it is a very dense substance.

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