NEET Physics SI Units Assertion Reason Question
Assertion (A): The unit for plane angle in the SI system is radian.
Reason (R): The radian is defined as the ratio of the length of arc to the radius.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false.
Correct Answer
Detailed Explanation
Both the assertion and reason are true. The SI unit for plane angle is radian, which is defined as the ratio of the length of arc to the radius according to the provided NCERT context.
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