What is able to occur because no surface is perfectly smooth?

What is able to occur because no surface is perfectly smooth?

Correct Answer: friction
temperature
mass
tension

Explanation: Friction occurs because no surface is perfectly smooth. Even surfaces that look smooth to the unaided eye appear rough or bumpy when viewed under a microscope. Look at the metal surfaces in Figure below . The metal foil is so smooth that it is shiny. However, when highly magnified, the surface of metal appears to be very bumpy. All those mountains and valleys catch and grab the mountains and valleys of any other surface that contacts the metal. This creates friction.

Join our channels for latest updates

WhatsApp Telegram

More Random Questions

Q: What is the primary goal of the Digital India initiative?
Ans: Promote digital infrastructure

Q: According to Sushruta, which Netra Roga is caused by Rakta and Pitta?
Ans: Rakta-Pittaja Netra

Q: On November 6, 2024, which state government has approved 35% job reservation for women?
Ans: Madhya Pradesh

Q: In Charaka Samhita, which Chikitsa is indicated for Vataja Hridroga?
Ans: Anuvasana Basti

Q: An ECG reveals an absent P wave. Which condition is most likely?
Ans: Atrial fibrillation

Q: Which Indian female pilot has created history by participating in the 'Pitch Black' military exercise?
Ans: Bhavana Kanth

Q: Where did the 3rd 'North East Games 2024' begin?
Ans: Nagaland

Q: Like ammonia, hydrazine is both a brønsted base and which other base?
Ans: lewis base

Q: A source of what is needed to disturb matter and start a mechanical wave?
Ans: energy

Q: On November 27, 2024, Emma McKeon has retired as the most successful Olympian of which country?
Ans: Australia

Q: Who won his maiden snooker world championship title?
Ans: Kyren Wilson

Q: A patient with inflammatory bowel disease develops toxic megacolon. Which advanced procedure is indicated?
Ans: Emergency colectomy

Q: Which country has rejected China's Belt and Road Initiative on October 30, 2024?
Ans: Brazil

Q: What was the main objective of the Champaran Satyagraha?
Ans: Address indigo farmers’ issues

Q: What does a red rectangular sign with a white symbol indicate?
Ans: Warning

Youngistan Junction

Welcome to Youngistan Junction, your ultimate hub for staying updated with the latest in current affairs, general knowledge, and general studies! Whether you're a student gearing up for exams or just someone passionate about expanding your knowledge, Youngistan Junction is here to provide you with an extensive collection of well-curated questions and answers.