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I need help on two of these please i give 20 points
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I need help on two of these please i give 20 points

I need help on two of these please i give 20 points-example-1
User Knuckles The Echidna
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7 votes
Number 14 is objective lens
User Papercuts
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5 votes

Answer: 13-d :D

Explanation: A diaphragm allows different amounts of light to pass through the slide.

User TheDawckta
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