A radiactive substance emits 100 beta particles in the first 2s and 50 beta

A radiactive substance emits 100 beta particles in the first 2s and 50 beta particles in the next 2s. The mean life of the sample is

Options

(a) 4 s
(b) 2 s
(c) 2/0.693 s
(d) 2×0.693 s

Correct Answer:

2/0.693 s

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. Two parallel long wires carry currents i₁ and i₂ with i₁ > i₂ .
  2. The respective speeds of the molecules are 1,2,3,4 and 5 km/s.
  3. Two cells, having the same e.m.f. are connected in series through an external resistance
  4. The drift velocity of free electrons in a conductor is v, when a current
  5. The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is