NEET Physics SI Units MCQ Question
Consider a diagram showing a spherical surface with its apex at point O. The intercepted area dA of this surface is shown along with its radius r. Which SI unit is correctly associated with the solid angle subtended by this intercepted area?
Steradian (sr)
Radian (rad)
Degree (°)
Meter (m)
Correct Answer
Detailed Explanation
The SI unit for a solid angle, defined as the ratio of the intercepted area of a spherical surface to the square of its radius, is the steradian (sr).
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