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The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y. Initially they have the same number of atoms. Then
  • a)
    X and Y decay at same rate always
  • b)
    X will decay faster than Y
  • c)
    Y will decay faster than X
  • d)
    X and Y have same decay rate initially
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The half-life period of a radio-active element X is same as the mean l...
According to question,

Now, the rate of decay is given by
∴ Y will decay faster than X. [∵N is some]
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Most Upvoted Answer
The half-life period of a radio-active element X is same as the mean l...
Option C is correct...
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The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y. Initially they have the same number of atoms. Thena)X and Y decay at same rate alwaysb)X will decay faster than Yc)Y will decay faster than Xd)X and Y have same decay rate initiallyCorrect answer is option 'C'. Can you explain this answer?
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The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y. Initially they have the same number of atoms. Thena)X and Y decay at same rate alwaysb)X will decay faster than Yc)Y will decay faster than Xd)X and Y have same decay rate initiallyCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y. Initially they have the same number of atoms. Thena)X and Y decay at same rate alwaysb)X will decay faster than Yc)Y will decay faster than Xd)X and Y have same decay rate initiallyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y. Initially they have the same number of atoms. Thena)X and Y decay at same rate alwaysb)X will decay faster than Yc)Y will decay faster than Xd)X and Y have same decay rate initiallyCorrect answer is option 'C'. Can you explain this answer?.
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