A radioactive substance contains 10000 nuclei and its halflife period is 20 days

A radioactive substance contains 10000 nuclei and its halflife period is 20 days. The number of nuclei present at the end of 10 days is

Options

(a) 7070
(b) 9000
(c) 8000
(d) 7500

Correct Answer:

7070

Explanation:

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

admin:

Related Questions

  1. An observer moving away from a stationary source. The observed frequency is half
  2. A small rod of bismuth is suspended freely between the poles of a strong electromagnet.
  3. If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
  4. The voltage gain of an amplifier with 9% negative feedback is 10.
  5. Electrons used in an electron microscope are accelerated by a voltage of 25 kV