Question:
The physical quantity which has no units, is
The physical quantity which has no units, is
Updated On: Apr 5, 2025
- radius of curvature
- velocity of light
- focal length
- refractive index
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The Correct Option is D
Solution and Explanation
The refractive index is a dimensionless quantity and has no units. It is the ratio of the speed of light in a vacuum to the speed of light in a medium, and therefore, it is a pure number without any physical units
The correct option is (D): refractive index
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