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The capacity to differentiate two nearby objects as distinct is termed resolving power or resolution limit. According to Abbe’s formula, Lm = 0.61λ / NA, where λ represents the light's wavelength.

1. Resolving power refers to the ability to separate two closely positioned objects.
2. Abbe’s formula is used to determine the resolving power.
3. Resolving power decreases as the wavelength of light increases.
4. Resolving power increases with a higher numerical aperture.

Correct answer: Resolving power decreases as the wavelength of light increases.

Solution

Resolving power is inversely proportional to the wavelength of light (λ) as per Abbe's equation, meaning shorter wavelengths improve resolution.

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