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NEET 2018, Physics Q15: Radioactivity

NEET2018Paper 2018Physics
Q.

For a radioactive material, half-life is 10 minutes. If initially there are 600 number of nuclei, the time taken (in minutes) for the disintegration of 450 nuclei is

  1. A

    20

  2. B

    30

  3. C

    10

  4. D

    15

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