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Unit 10: Effects of injuries to the cornea in the eyes
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Power of a lens
Unit 10 · Effects of injuries to the cornea in the eyes
Power of a lens
Science
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8 min
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Question 1 of 13
1
What is the power of a lens?
The distance from its optical centre to its focus
Its ability to converge or diverge light rays
The thickness of the lens at its middle
The amount of light the lens lets through