Question

what is the metal in which no rays can't paas through it?​

Answer 1

Answer:

The more material the x-rays have to traverse (i.e. the thicker the piece of lead), the greater the fraction of absorbed x-rays, up to a point where the lead becomes so thick that virtually no photons escape.

Explanation:

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Answer 2

a mental is a light emmiting diode in no ray can pass through