Answered: 4) Find the minimum angular separation…

4) Find the minimum angular separation resolvable with 633-nm laser light passing through a circular aperture of diameter 2.1 cm.

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Expert Solution

Concept and Principle:

There is a fundamental restriction on imaging distant or small objects. This is known as the diffraction limit.

When we have a circular aperture the minimum angular separation that can be resolved is given by,

$θ_{m i n} = \frac{1 .22 λ}{D}$

Here θ_min is the minimum angular separation, λ is the wavelength, and D is the aperture. This condition is known as the Rayleigh criterion.

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