After 300 days, the activity of a radioactive sample is 5000 dps

After 300 days, the activity of a radioactive sample is 5000 dps (disintegration per second). The activity becomes 2500 dps after another 150 days. The initial activity of the sample (in dps) is

Options

(a) 20000
(b) 10000
(c) 7000
(d) 25000

Correct Answer:

20000

Explanation:

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

admin:

Related Questions

  1. If the series limit of Lyman series for hydrogen atom is equal to the series limit
  2. P-type semiconductors are made by adding impurity element
  3. Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
  4. An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰
  5. The de-Broglie wavelength of a proton(charge = 1.6 x 10⁻¹⁹ C, Mass = 1.6 x 10⁻²⁷ kg)