Question

The mass of a body can be zero whereas the weight of a body can never be zero.
True or false.
$\left( A \right)$ True
$\left( B \right)$ False

Answer 1

Hint: In this question use the concept that mass is an intrinsic property (i.e. it does not depend on other parameters it only depends on the object) and use the concept that weight of a free falling body can be zero so use this property to reach the solution of the question.

Complete Step-by-Step solution:
Just assume we are in an elevator when the elevator is going down we feel less pressure on the foot of ours (because elevator is moving in the direction of gravity as the gravitational force acting on the body is not uniform) so if we measure the weight of ours at this time weighing machine shows less weight than actual.
Hence the weight of the body can be zero.
Now as we know that the mass of any body does not depend on any parameter it is dependent only on the object i.e. body because mass is an intrinsic property.
So the mass of a body can never be zero.
So the given statement is opposite to our conclusion.
Hence the given statement is false.
Hence option (B) is the correct answer.

Note – An interesting fact is that weight is a force so it is a vector quantity so it has both magnitude as well as direction so weight can be zero if we move in the direction of gravity and weight can be more than the original weight if we move opposite to the gravity i.e. upwards, and mass is a scalar quantity so it has only magnitude so mass can never be zero.