Basic Microbiology 44 Views 1 Answers
Sourav Pan🥇 GoldAugust 18, 2024
A fluorescence microscope with an objective lens of numerical aperture (NA) 1.5 is used with light of wavelength (λ) 600 nanometers. The lateral resolution limit of this microscope, rounded off to the nearest integer, is _________ nanometers.
A fluorescence microscope with an objective lens of numerical aperture (NA) 1.5 is used with light of wavelength (λ) 600 nanometers. The lateral resolution limit of this microscope, rounded off to the nearest integer, is _________ nanometers.
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Sourav Pan🥇 GoldMay 15, 2025
Answer: 200 nanometers
textbf{Explanation:} The viable count is calculated by multiplying the colony-forming units (CFUs) by the dilution factor. In this case: 400 times 10^4 = 4,000,000 text{ CFU/g} which is equivalent to 4 million CFU/g.
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