MCQ Practice Physics 📖 হাইড্রোজেন পরমাণুর প্রথম বোর কক্ষে ইলেক্ট্রনের মােটশক্তি -13.6 eV । তৃতীয় বোর কক্ষে মোটশক্তি কত ক -1.5 eVখ -3.4 eVগ -40. 8 eVঘ 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 2018-19 Question 13 DU KA Unit Question Bank Physics 2018-19 Question 13