How does using immersion oil improve the resolution of an objective lens?
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Correct answer: It increases the refractive index between the specimen and the lens
Immersion oil has a refractive index similar to glass, which prevents light from bending (refracting) as it leaves the coverslip. This allows more light to be collected by the lens, increasing the numerical aperture and improving resolution.
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More Microscopy Resolution questions
- What is the relationship between Numerical Aperture (NA) and resolution?
- Which component of the microscope is primarily responsible for determining the initial resolving power of the system?
- Empty magnification occurs when:
- Why does an electron microscope have a significantly higher resolution than a light microscope?
- In the formula $NA = n \sin \theta$, what does '$n$' represent?
- A typical Transmission Electron Microscope (TEM) can achieve a resolution of approximately: