Teaching CTET (Paper 1 & Paper 2) Mock Test Series 2025 Physics Laws of Motion Common forces in mechanics
Assertion (A): A bicycle with a greased chain operates more smoothly.
Reason (R): Grease reduces the rolling friction in the chain.
1
Both A and R are true, and R is the correct explanation of A.
2
Both A and R are true, but R is not the correct explanation of A.
3
A is true, but R is false.
4
A is false, but R is true