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Magnification of compound microscope is not connected with
[1990]
- a)numerical aperture
- b)focal length of objective
- c)focal length of eye piece
- d)tube length
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Magnification of compound microscope is not connected with[1990]a)nume...
The numerical aperture (NA) involved in the resolution of the microscope (the ability to distinguish two points separate) and NA not involved in the magnification. Reaming are directly or indirectly involved in the magnification of the compound microscope (b) focal length of objective, (c) focal length of eyepiece and (d) tube length
so option A is correct
Most Upvoted Answer
Magnification of compound microscope is not connected with[1990]a)nume...
Because ... focal length affects on magnification...
also tube length affects on position of image for eye lens formed by objective lens.
--- focal lengths and tube length affects on magnification.
numerical aperture is not important
also tube length affects on position of image for eye lens formed by objective lens.
--- focal lengths and tube length affects on magnification.
numerical aperture is not important
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Magnification of compound microscope is not connected with[1990]a)nume...
Understanding Magnification in Compound Microscopes
Magnification in a compound microscope is a crucial concept that involves various optical components. However, not all factors influence the overall magnification equally.
Factors Influencing Magnification
- Objective Focal Length: The focal length of the objective lens is inversely related to its magnification power. Shorter focal lengths result in higher magnification.
- Eyepiece Focal Length: The eyepiece also contributes to the total magnification. Similar to the objective, a shorter focal length in the eyepiece increases magnification.
- Tube Length: The distance between the objective and eyepiece (tube length) impacts the overall system's magnification. It is essential for maintaining focus and ensuring clarity in the observed image.
Numerical Aperture (NA)
- Definition: The numerical aperture is a measure of a lens's ability to gather light and resolve fine specimen detail at a fixed object distance. It is defined as NA = n × sin(θ), where 'n' is the refractive index of the medium and 'θ' is the half-angle of the maximum cone of light that can enter or exit the lens.
- Relation to Magnification: While NA affects resolution and image brightness, it does not directly influence the magnification of the microscope. High NA lenses provide clearer images but do not change the magnification itself.
Conclusion
In summary, magnification in a compound microscope is primarily dependent on the focal lengths of the objective and eyepiece, as well as the tube length. The numerical aperture, while essential for image quality, does not play a direct role in magnification, making it the correct answer to the question.
Magnification in a compound microscope is a crucial concept that involves various optical components. However, not all factors influence the overall magnification equally.
Factors Influencing Magnification
- Objective Focal Length: The focal length of the objective lens is inversely related to its magnification power. Shorter focal lengths result in higher magnification.
- Eyepiece Focal Length: The eyepiece also contributes to the total magnification. Similar to the objective, a shorter focal length in the eyepiece increases magnification.
- Tube Length: The distance between the objective and eyepiece (tube length) impacts the overall system's magnification. It is essential for maintaining focus and ensuring clarity in the observed image.
Numerical Aperture (NA)
- Definition: The numerical aperture is a measure of a lens's ability to gather light and resolve fine specimen detail at a fixed object distance. It is defined as NA = n × sin(θ), where 'n' is the refractive index of the medium and 'θ' is the half-angle of the maximum cone of light that can enter or exit the lens.
- Relation to Magnification: While NA affects resolution and image brightness, it does not directly influence the magnification of the microscope. High NA lenses provide clearer images but do not change the magnification itself.
Conclusion
In summary, magnification in a compound microscope is primarily dependent on the focal lengths of the objective and eyepiece, as well as the tube length. The numerical aperture, while essential for image quality, does not play a direct role in magnification, making it the correct answer to the question.
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Magnification of compound microscope is not connected with[1990]a)numerical apertureb)focal length of objectivec)focal length of eye pieced)tube lengthCorrect answer is option 'A'. Can you explain this answer?
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