A radioactive isotope has a half-life of 8 days. What fra...
A radioactive isotope has a half-life of 8 days. What fraction of the atoms will remain after 72 days?
9.766 × 10-4
1.736 ×10-3
1.953 ×10-3
3.472 × 10-3
3.906 x 10-3
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements describes an atom accurately? i. atoms of all elements are iden...
The volume of a given mass of gas at 27oC and 800 mmHg is 76cm2. Calculate its volume at s.t.p...
A radioactive source emits X–rays of very short wavelength (10 -13m ). what is the frequency&n...
When two waves are superimposed on each other, the following occurrences are possible, except ...
When a ball rolls on a smooth level ground, the motion of its center is ...
The inner diameter of a small test tube can be measured accurately using a ...