two dots are at a distance of 3.8 nm. the radiation we will have to use...

two dots are at a distance of 3.8 nm. the radiation we will have to use in order to be able to see the two dots clearly must have a wavelength of:

Expert Solution

Ans. Resolution (r) is given by-

r = L / 2 NA - equation 1

Where, r = resolution = the distance between two points to be resolved

L = wavelength

NA = Numerical aperture (1.45 for oil immersion)

Given, r = 3.8 nm

Putting the values in equation 1-

3.8 nm = L / (2 x 1.45)

Or, L = 3.8 nm x 2.90

Hence, L = 11.02 nm

Therefore, required wavelength, L = 11.02 nm

queen_honey_blossom answered 2 years ago

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