MCQ Practice All Subject 📖 Co-efficient of friction depends on - ক area of contract onlyখ both a and bগ nature of surface onlyঘ none of these 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 Previous CMP করতে কোনটি দরকার হয়? Next Coagulation এ কোনটি ব্যবহৃত হয়?
