Physics · Nuclei
If the time taken for a radioactive substance to decay from an initial activity to a certain fraction takes 12 minutes, specifically decreasing from 88% to 77% of its initial value, then the half-life of the substance in minutes is approximately:
- 162✓
- 212
- 318
- 424
Correct answer
62
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Nuclei?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Nuclei