The unit of measurement of the power of a lens is:
The power of a lens is measured in dioptres. Power is the reciprocal of focal length in metres, so one dioptre equals one inverse metre.
Choose your answer
The unit of measurement of the power of a lens is:
Answer and explanation
Correct answer A
The power of a lens is measured in dioptres. Power is the reciprocal of focal length in metres, so one dioptre equals one inverse metre.
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