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Multiple choice

The half-life of a radioactive disintegration having rate constant 330 sec-1 is:

  1. 2.0 x 10-3 sec

  2. 2.1 x 10-3 sec

  3. 2.1 x 10-2 sec

  4. 2.0 x 10-2 sec

  5. 2.1 x 10-4 sec

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Half life period, t1/2 = 0.693/k
= 0.693/330 sec-1 = 2.1 x 10-3 sec

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