MCQ Practice Physics 📖 14 min শেষে তেজস্ক্রিয় Polonium এর 1/16 অংশ অবশিষ্ট থাকে। মৌলটির অর্ধায়ু কত? ক 72minখ 78minগ 87minঘ Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in DU KA Unit Question Bank Physics 2017-18 Question 2 DU KA Unit Question Bank Physics 2017-18 Question 2 DU KA Unit Question Bank Physics 2017-18 Question 2 DU KA Unit Question Bank Physics 2017-18 Question 2
