Question

Assertion (A) : The value of coefficient of restitution is independent of the masses and velocities of the colliding bodies but depends on their materials.
Reason (R) : Coefficient of restitution is the ratio of the relative velocity of separation or the relative velocity of approach

• A. Both Assertion (A) and Reason (R) are correct and R is the correct explanation
• B. Both Assertion (A) and Reason (R) are correct but the reason does not give the correct explanation
• C. A is true but R is false
• D. A is false but R is true

Answer 1

The correct option is B Both Assertion (A) and Reason (R) are correct but the reason does not give the correct explanation

Coefficient of restitution is defined as ratio of relative velocities after collision and relative velocities before collision. It can also be defined as ratio of deformation and reformation which depends on the material of the bodies.