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Microscope Numerical Aperture Quiz

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What is the relationship between the numerical aperture (NA), the refractive index (n), and the angular aperture (θ)?

$NA = \frac{n}{\sin(\theta)}$

$NA = n + \sin(\theta)$

$NA = n \cdot \sin(\theta)$ (correct)

$NA = n - \sin(\theta)$

What does the refractive index (n) represent in the context of numerical aperture?

The resolving power of the objective

The degree of bending of light as it enters the medium

The speed of light in the medium (correct)

The angle of the cone of light

What determines the angular aperture of an objective lens?

The distance to the specimen

The size of the objective lens

The wavelength of the light waves

The focal length of the objective (correct)

Microscope Numerical Aperture Quiz

Choose a study mode

Podcast

Questions and Answers

What is the relationship between the numerical aperture (NA), the refractive index (n), and the angular aperture (θ)?

What does the refractive index (n) represent in the context of numerical aperture?

What determines the angular aperture of an objective lens?

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