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Questions and Answers
Questions and Answers
What is the overall magnification when using an eyepiece magnification of $X10$ and an objective lens magnification of $X40$?
What is the overall magnification when using an eyepiece magnification of $X10$ and an objective lens magnification of $X40$?
- 400 (correct)
- 1000
- 40
- 100
What is the main factor affecting the resolving power of a microscope?
What is the main factor affecting the resolving power of a microscope?
- Wavelength of the light and optical quality of the lenses (correct)
- Size and curvature of the lens
- Type of microscope
- Magnification power
Which type of microscope is suitable for observing living cells in their natural state?
Which type of microscope is suitable for observing living cells in their natural state?
- Phase-contrast microscope (correct)
- Scanning electron microscope
- Transmission electron microscope
- Fluorescence microscope
What is the function of the objective lens in a microscope?
What is the function of the objective lens in a microscope?
What is the purpose of maintenance and cleaning of a microscope?
What is the purpose of maintenance and cleaning of a microscope?
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Flashcards
Flashcards
Overall Magnification
Overall Magnification
The overall magnification is calculated by multiplying the eyepiece magnification by the objective lens magnification.
Resolving Power Factors
Resolving Power Factors
The resolving power of a microscope depends on the wavelength of light used and the quality of the microscope's lenses.
Phase-Contrast Microscope
Phase-Contrast Microscope
A phase-contrast microscope is used to view living cells without staining because it enhances the contrast of transparent specimens.
Objective Lens Function
Objective Lens Function
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Microscope Maintenance
Microscope Maintenance
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Flashcards
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Study Notes
Study Notes
Microscope Basics
- Overall magnification of a microscope is calculated by multiplying the eyepiece magnification by the objective lens magnification.
- Example: Using an eyepiece magnification of X10 and an objective lens magnification of X40, the overall magnification would be X400.
Resolving Power
- The main factor affecting the resolving power of a microscope is the wavelength of light used.
Types of Microscopes
- Phase contrast microscopes are suitable for observing living cells in their natural state.
Objective Lens
- The function of the objective lens in a microscope is to gather and focus light from the specimen.
Microscope Maintenance
- Regular maintenance and cleaning of a microscope are essential to ensure optimal performance and image quality, and to prevent damage to the instrument.
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