Resolving Power of Optical Instruments Microscope

# Resolving Power of Optical Instruments Microscope Video Lecture | Physics for ACT

## Physics for ACT

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## FAQs on Resolving Power of Optical Instruments Microscope Video Lecture - Physics for ACT

 1. What is the resolving power of an optical microscope?
Ans. The resolving power of an optical microscope refers to its ability to distinguish between two closely spaced objects as separate entities. It is a measure of the microscope's ability to provide clear and detailed images by minimizing the blur caused by the diffraction of light.
 2. How is the resolving power of an optical microscope determined?
Ans. The resolving power of an optical microscope can be determined using the formula: Resolving Power = 0.61 * (wavelength of light) / (numerical aperture). The numerical aperture is a measure of the light-gathering ability of the microscope's lens and the wavelength of light refers to the color of light used in the microscope.
 3. How does increasing the numerical aperture affect the resolving power of an optical microscope?
Ans. Increasing the numerical aperture of an optical microscope increases its resolving power. A higher numerical aperture means a larger cone of light is collected by the lens, resulting in a smaller minimum resolvable distance. This allows the microscope to distinguish between smaller details and improve the clarity and sharpness of the observed image.
 4. Can the resolving power of an optical microscope be improved by using a shorter wavelength of light?
Ans. Yes, the resolving power of an optical microscope can be improved by using a shorter wavelength of light. According to the resolving power formula, a smaller wavelength in the numerator will result in a larger resolving power value. Shorter wavelengths of light allow for smaller details to be resolved, resulting in clearer and more detailed images.
 5. What are the limitations of the resolving power of an optical microscope?
Ans. The resolving power of an optical microscope is limited by the diffraction of light. As the numerical aperture and wavelength of light are fixed for a specific microscope, there is a limit to the smallest details that can be resolved. This means that even with high numerical apertures and shorter wavelengths of light, there is a limit to the level of detail that can be observed using an optical microscope.

## Physics for ACT

169 videos|131 docs|69 tests

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