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Biology
Posted 5 months ago
why do you need oil immersion to look for ghe bacteria
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Answer from Sia
Posted 5 months ago
Answer
Oil immersion is needed to increase the resolving power of the microscope when looking for bacteria.
Solution
a
Refractive index matching: Oil has a similar refractive index to glass, which reduces light refraction and increases light transmission
b
Resolving power: Oil immersion allows the use of higher magnification with minimal loss of resolution, making it possible to see small bacteria clearly
Key Concept
Oil immersion technique in microscopy
Explanation
Oil immersion is used to enhance the resolution of the microscope at high magnification, which is necessary for observing small organisms like bacteria.
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