NEETPhysicsLaws of Motion
Assertion : The weighing machine measures the weight of a body. Reason : Weightlessness means the absence of weight.
Options
- AIf both Assertion and Reason are correct and Reason is the correct explanation of Assertion
- BIf both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- CIf Assertion is true but Reason is false
- DIf Assertion is false but Reason is true
Correct answer
D. If Assertion is false but Reason is true
Step-by-step solution
- A weighing machine actually reads the normal reaction (apparent weight), not the true gravitational weight; in non inertial situations they differ, so the assertion is false. - Weightlessness refers to zero apparent weight (normal reaction zero), not zero gravity; phrasing "absence of weight" is commonly used to indicate this condition, making the reason true.