Assertion: The ratio of intertial mass to gravitational mass is equal to one.
Reason: The inertial mass and gravitational mass of a body are equivalent.

Options

A. If both the assertion and reason are true and reason is a true explantion of the assertion.
B. If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.
C. If the assertion is true but reason false
D. If both the assertion and reason are false.

Answer

A

Explanation

Inertial mass and gravitational mass are equivalent. Both are scaler quanties and measured in the same unit. They are quite different in the method of their measurement. Also gravitational mass of a body is affected by the presence of other bodies near it whereas internal mass remain unaffected.