Assertion - -particles have greater penetrating power than -rays but less than -rays- Reason- -particles are lighter than - but heavier than -

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Standard IX

Chemistry

Properties of Alpha, Beta and Gamma Radiations

Assertion : ...

Question

Assertion : $β$ -particles have greater penetrating power than $α$ -rays but less than $γ$ -rays. Reason: $β$ -particles are lighter than $α$ but heavier than $γ$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The assertion is correct.
Being lighter $β$ particles can tunnel and pass through objects easier.
Thus the reason is correct and it explains the assertion correctly.

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Assertion :β-particles have greater penetrating power than α-rays but less than γ-rays. Reason: β-particles are lighter than α but heavier than γ.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionThe assertion is correct.Being lighter β particles can tunnel and pass through objects easier.Thus the reason is correct and it explains the assertion correctly.

Assertion : $β$ -particles have greater penetrating power than $α$ -rays but less than $γ$ -rays. Reason: $β$ -particles are lighter than $α$ but heavier than $γ$ .

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The assertion is correct.
Being lighter $β$ particles can tunnel and pass through objects easier.
Thus the reason is correct and it explains the assertion correctly.