Physics
Assertion (A): If momentum of a body increases by 50%, its kinetic energy will increase by 125%.
Reason (R): Kinetic energy is proportional to the square of velocity.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
Related Questions
Assertion (A): Sound waves can travel in vacuum, but light waves cannot.
Reason (R): Light is an electromagnetic wave, but sound is a mechanical wave .
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
Assertion (A): When a force retards the motion of a body, the work done by the body is zero.
Reason (R): Work done depends on the angle between force and displacement.
- Both A and R are true.
- Both A and R are false.
- A is false but R is true.
- A is true but R is false.
Assertion (A): The speed of sound in a gas increases with an increase in humidity.
Reason (R): Density of a gas decreases with increase in humidity.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
Assertion (A): The flash of lightning is seen before the sound of thunder is heard.
Reason (R): The speed of sound is greater than the speed of light.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.