Question

The apparent weight of a body in a fluid is :

• A. equal to weight of fluid displaced
• B. volume of fluid displaced
• C. difference between its weight in air and weight of fluid displaced
• D. none of the above

Answer 1

The correct option is C

difference between its weight in air and weight of fluid displaced

1. The apparent weight of the body completely immersed in a fluid, will always be less than its actual weight, because of the upthrust.
2. Even when we weigh a body in the air, the weight recorded will be apparent weight and not true weight, because the air is a fluid that also produces upthrust.
3. Therefore, the apparent weight of a body in a fluid is the difference between its weight in air and the weight of the fluid displaced.

Hence, option C is correct.