Find limit of resolution of a microscope if an object of numerical aperture 0.06 is viewed by using light of wavelength 9600 Å.
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Question

Find limit of resolution of a microscope if an object of numerical aperture 0.06 is viewed by using light of wavelength 9600 Å.

G1 Physics · Accepted Answer

For a microscope, the Rayleigh limit of resolution is dₘᵢₙ=0.61λ/NA. With λ=9600 Å=9.6×10⁻⁷ m and NA=0.06, dₘᵢₙ=0.61×9.6×10⁻⁷/0.06≈9.76×10⁻⁶ m=9.76 μm. Option D.