If the red light is replaced by blue light illuminating the object in a microscope, the resolving power of the microscope
Correct answer: A. Increases
- A. Increases
- B. Decreases
- C. Remains the same
- D. Becomes half
Explanation
The resolving power of a microscope is given by the formula R=λ/2NA , where λ is the wavelength of light and NA is the numerical aperture. As λ decreases (e.g., from red to blue light), the resolving power increases.
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Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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