Physics · UNITS AND MEASUREMENT
हिन्दीWhich of the following supplementary units is defined as the ratio of the intercepted area of a spherical surface to the square of its radius?
Correct answer · Option 2
Steradian
Explanation
Solid angle (\( d\Omega \)) is defined as the ratio of intercepted area \( dA \) of the spherical surface to the square of its radius \( r \), measured in steradians.