Wb Jee
Radioactivity And Nuclear Chemistry
WB JEE 2018
MCQ+1 / -0.332018
\({C^{14}}\) এর অর্ধজীবনকাল হলো 5760 বছর। 200 mg \({C^{14}}\) এর পরিমাণ 25mg তে পরিণত হবে -
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