Physics-SI Units
NEET Physics SI Units MCQ Question
Type: MCQ-diagram based-Hard-Class 11
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?
A
Steradian (sr)
B
Radian (rad)
C
Degree (°)
D
Meter (m)
Correct Answer
Option A
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).
Found an issue with this question?