The half life of Co-60 is 5.27 years. If the activity of a Co-60 source is 5000 Ci./ find (1) the number of radio active nuclei in the source (2) the activity of the source after 1 year.

CBSE Class 12-science Answered

The half life of Co-60 is 5.27 years. If the activity of a Co-60 source is 5000 Ci./ find (1) the number of radio active nuclei in the source (2) the activity of the source after 1 year.

Asked by rutujasarangmehta | 15 Mar, 2016, 07:28: PM

Expert Answer

Answered by Romal Bhansali | 17 Mar, 2016, 01:24: PM

Answered Unanswered My Questions My Answers

CBSE 12-science - Physics

which answer is correct and most appropriate with explanation

Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM

ANSWERED BY EXPERT

CBSE 12-science - Physics

ans the questions wit reason

Asked by mishrigupta19319 | 07 Apr, 2024, 11:23: AM

ANSWERED BY EXPERT

CBSE 12-science - Physics

A resistance of 600 , an inductor of 0.4 H and a capacitor of 0.01 uF are connected in series to an AC source of variable frequency. Find the frequency of AC source for which current in the circuit is maximum. Also calculate the band width and quality factor for the circuit.

Asked by shivakumarshreyas24 | 01 Mar, 2020, 08:12: AM

ANSWERED BY EXPERT

CBSE 12-science - Physics

numericals based on einstein photoelectric equation

Asked by khushimassey437 | 31 May, 2019, 08:41: AM

ANSWERED BY EXPERT

CBSE 12-science - Physics

Calculate no of photons passing through a ring of unit area in unit time if light of intensity 100 wm -2 and wavelength 400nm is fallingnormally on the ring

Asked by manasvijha | 19 Mar, 2019, 07:17: PM

ANSWERED BY EXPERT

CBSE 12-science - Physics

Can photoelectric effect be explained on the basis of wave theory of radiation?