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Kinetic Friction

A mixture of ...

Question

A mixture of radioactive substances gives off three types of radiations. The radiation which has the highest ionizing power is

A

Cosmic radiation

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B

γ-radiation

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C

ß-radiation

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D

α - radiation

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Solution

The correct option is D
α - radiation

α – radiations are massive and hence they can ionize the air molecules to a greater extent than other radiations.

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