10 gm of radioactive material of half-life 15 year is kept in store for 20 years. The disintegrated material is

(a) 12.5 g            (b) 10.5 g
(c) 6.03 g            (d) 4.03 g

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level: