MCQ Practice Chemistry 📖 আলো হলো- ক পদার্থখ বস্তুগ রশ্মিঘ শক্তি 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 BCSMT - [General knowledge] 40Question 1 BCSMT - [General knowledge] 40Question 1 Previousআকাশে বিদ্যুৎ চমকায় --- Nextআলোর উৎপত্তির কারণ পরমাণু -
