MCQ Practice Physics 📖 আলোতে যে সাতটি বর্ণ আছে তা প্রমাণ করেন কোন বিজ্... 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 BCS Preliminary Model Test Quiz and Solution General knowledge 18Question 20 BCS Preliminary Model Test Quiz and Solution General knowledge 18Question 20 Previousআলোর গতি কত? Nextঅবহেলিত রশ্মির ব্যবহার নয় কোনটি?
