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Physics · UNITS AND MEASUREMENT

हिन्दी

Which of the following supplementary units is defined as the ratio of the intercepted area of a spherical surface to the square of its radius?

  1. A
    Radian
  2. B
    Steradian
  3. C
    Degree
  4. D
    Candela

Correct answer · Option B

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.
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