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How does the addition of immersion oil provide better magnification than a high power lens alone?a) The immersion oil has a higher refractive index than the glass composed in slides or cover slips and thus bends more light rays, allowing the lens to collect more light.b) The immersion oil used has a higher refractive index than the objective lens used, thus causing more light rays to be bent.c) The immersion oil has the same refractive index as glass; by placing a drop of oil between the glass slide and the lens, this eliminates two refractive surfaces.d) The immersion oil has a lower refractive index than the glass composed in slides or cover slips and thus bends more light rays, allowing the lens to collect more light.

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