NEET Physics SI Units MCQ Question
Consider a diagram showing a circle with a central angle represented by a sector. The arc length of the sector is labeled as ds and the radius of the circle as r. Based on this description, what is the SI unit for the plane angle formed by the sector?
radian
degree
steradian
gradian
Correct Answer
Detailed Explanation
In the SI system, the unit for plane angle, which is defined as the ratio of arc length to radius, is the radian. This is derived from Table 1.1 in the NCERT context.
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