AIIMS 2018 Physics Surface Tension Assertion Reason Question
Assertion: Surface tension of all lubricating oils and paints is kept high. Reason: Due to high value of surface tension the fluids get damaged.
Both Assertion and Reason are true, and Reason is the correct explanation of Assertion
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Assertion is true, but Reason is false
Assertion is false, but Reason is true
Correct Answer
Detailed Explanation
The assertion that surface tension of all lubricating oils and paints is kept high is false; in fact, these substances typically have lower surface tension to enhance spreading and wetting properties. The reason provided is also false, as high surface tension does not inherently damage fluids; rather, it can lead to issues like poor adhesion or inadequate coverage. Options A and B are incorrect because they rely on the assertion being true, while option C is incorrect since it states the reason is true, which it is not. Understanding the role of surface tension in fluid dynamics is crucial for applications in lubrication and coating technologies.
Found an issue with this question?
Related Questions
More from 2018
Calculate the emf of the cell in which of the following reaction takes place Ni(s) + 2Ag⁺(0.002M) ⟶ Ni²⁺(0.160M) + 2Ag(s) Given that E°cell = 1.05V
Which of the following logic gate has only one input and one output?
A person aiming to reach the exactly opposite point on the bank of a stream is swimming with a speed of 0.5 m/s at an angle of 120° with the direction...