MCQ Practice Physics 📖 একটি পিয়ানো তারের দৈর্ঘ্য L এর ভর M । যদি এর মূল কম্পাঙ্ক f হয়, তবে তারে টান হলো : ক -2Mf2/Lখ 4fM/Lগ 4MLf2ঘ 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 11 DU KA Unit Question Bank Physics 2018-19 Question 11