Question

Half life of a certain radioactive substance is 69.3 days.its disintegration constant is

Answer 1

Radioactivity is an important topic of Modern Physics in the JEE. Half-life of a radioactive substance is a vital area that lays the groundwork for other concepts. Calculation of half-life of a radioactive substance is not a very tedious task and questions are often picked from these areas in various competitive exams. We discuss some numerical on how to calculate the wavelength, mass and half-life of a radioactive decay.