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प्रश्न
The half-life of a radioactive substance is 10 days. The time taken for the `(7/8)^"th"` of the sample of disintegrates is ______.
पर्याय
20 days
30 days
40 days
80 days
MCQ
रिकाम्या जागा भरा
उत्तर
The half-life of a radioactive substance is 10 days. The time taken for the `(7/8)^"th"` of the sample of disintegrates is 30 days.
shaalaa.com
Radioactive Decays
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