What is the unit of measurement of solid angles?

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Editor">Editor Staff asked 1 year ago

What is the unit of measurement of solid angles?
 
(a) Steradians
 
(b) Degrees
 
(c) Radians
 
(d) Grades
 
I had been asked this question by my school principal while I was bunking the class.
 
The origin of the question is The International System of Units topic in section Units and Measurements of Physics – Class 11
Select the correct answer from above options 
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Editor">Editor Staff answered 1 year ago

Correct choice is (a) Steradians
 
For explanation: AS plane angles are measured in radians, in the same way solid angles are measured in steradians. A solid angle can be interpreted as the 3-dimensional form of a plane angle.

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