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JEE Main2019Physics
Q.

Using a nuclear counter the count rate of emitted particles from a radioactive source is measured. At t = 0 it was 1600 counts per second and t = 8 seconds it was 100 counts per second. The count rate observed, as counts per second, at t = 6 seconds is close to :

  1. A

    150

  2. B

    360

  3. C

    200

  4. D

    400

Solution

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