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Q: Which of the following statements is incorrect?
  • A. If the buoyancy force is less than the weight of the object then the object sinks
  • B. If the buoyancy force is greater than the weight of the object, the object floats
  • C. If the buoyancy force is less than the weight of the object, the object floats
  • D. If the buoyancy force is equal to the weight of the object, the object floats inside the liquid
Correct Answer: Option C - If the buoyancy force is less than the weight of the object, the object floats. This statement is false. The upward force on an object, when it partially or completely immersed in a liquid is called buoyancy force.
C. If the buoyancy force is less than the weight of the object, the object floats. This statement is false. The upward force on an object, when it partially or completely immersed in a liquid is called buoyancy force.

Explanations:

If the buoyancy force is less than the weight of the object, the object floats. This statement is false. The upward force on an object, when it partially or completely immersed in a liquid is called buoyancy force.