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Q: Diopter is unit of………..?
  • A. Power of lens
  • B. Focal length of lens
  • C. Intensity of light
  • D. Intensity of sound
Correct Answer: Option A - Diopter is unit of power of lens. * Candela is the unit of light intensity. * The unit of intensity of sound is decibel.
A. Diopter is unit of power of lens. * Candela is the unit of light intensity. * The unit of intensity of sound is decibel.

Explanations:

Diopter is unit of power of lens. * Candela is the unit of light intensity. * The unit of intensity of sound is decibel.