Q. Which of the following is/ are ways to increase friction?
- Making the surfaces corrugated
- Rubbing the hands with soap
Select the correct answer from the codes given below:
Answer:
Only 1
Notes: Soles of the shoes and the tyres of the automobile are made corrugated and rough to increase the friction. Wrestler and kabaddi players rub their hands with the soil for better and firm grip due to increase friction.