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Question
Assertion :α− rays have greater ionizing power than β− rays. Reason: α− particles carry two unit positive charge while β− particles carry only one unit negative charge.
Assertion :α− rays have greater ionizing power than β− rays. Reason: α− particles carry two unit positive charge while β− particles carry only one unit negative charge.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
α− rays have greater ionizing power (100 times) than β− rays.
α− particles are helium nuclei and carry two unit positive charge while β− particles are electrons and carry only one unit negative charge.
Ionising power does not depend on the charges that a particle carries.
Thus, both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
α− rays have greater ionizing power (100 times) than β− rays.
α− particles are helium nuclei and carry two unit positive charge while β− particles are electrons and carry only one unit negative charge.
Ionising power does not depend on the charges that a particle carries.
Thus, both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
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