The least penetrating power ray is...

The least penetrating power ray is

A

X-Ray

B

`alpha -`ray

C

`beta `- Ray

D

`gamma -` ray

Text Solution

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The correct Answer is:

B

Since alpha particles are high in ionizing power, it is difficult for them to penetrate matter thoroughly. This is because alpha particles are likely to tonize the first thing they come into contact with, thus, they hold a small range of penetrating power. Beta rays have intermediate, while, Gamma Rays and X Rays have maximum penetrating power.

Similar Questions

Explore conceptually related problems

Assertion (A) : beta -particles have greater penetrating power than alpha -rays but less than gamma -rays Reason (R ) : beta -particles are lighter than alpha -rays but heavier than gamma -rays

Assertion (A): beta- particles have greater penetrating power than alpha- rays but less than gamma- rays. Reason (R) : beta- particles are lighter than alpha- particles but heavier than gamma.

Assertion : X - rays can penetrate through the flesh but not through the bones. Reason : The penetrating power of X - rays depends on voltage.

The alpha- rays have more penetrating power than gamma- rays.

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