What causes friction between two surfaces in contact when they try to slide past each other?

Interlocking of irregularities present on the surfaces

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Rigidity of the surfaces

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Gravitational attraction between the surfaces

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Presence of atmosphere around the surfaces

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Interlocking of irregularities present on the surfaces

Friction is caused by interlocking of irregularities present on the surfaces in contact. Rough surfaces have larger irregularities while smoother surfaces have lesser irregularities. Hence, rough surfaces offer more friction as compared to smooth surfaces. Even surfaces that appear smooth have numerous minute irregularities present on them.

Suggest Corrections

Similar questions

What causes friction between two surfaces in contact when they try to slide past each other?

Q. When two smooth surfaces slide over each other, the primary cause of friction is .

Q. When two perfectly smooth surfaces slide over each other, the primary cause of friction is .

If two pieces of same metal having Ultra smooth surfaces are kept in contact comment on the friction between two surfaces when we try to move one on the other justify your answer with proper reasons.

How do F1 cars manage to develop friction even though they don't have treading

On one hand you say that when two smooth, even surfaces slide over each other, there is adhesion between them which causes friction. On the other you say that there is no friction between two smooth surfaces. I'm not getting.

Mark the word SMOOTH.

Join BYJU'S Learning Program