Optics - complete this ray diagram

In summary, the conversation discusses completing a ray diagram for an objective lens in an optical microscope and understanding the relationship between the relative distances and lens equations. It also touches on the impact of focal length on magnification and whether a shorter or longer focal length is needed to increase magnification. The objective lens of a microscope is the one near the object being magnified, while the other converging lens is the eyepiece.
  • #1
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Homework Statement


For an optical microscope, complete a ray diagram for an objective lens and relate the relate the relative distances to the lens equations. If you want to increase the magnification, should the objective lens have a shorted or longer focal length (illustrate this on the same figure in a different color)?


Homework Equations


lens equation:
1/u +1/v=1/f


The Attempt at a Solution


For an optical microscope, there are 2 converging objective lens. One will have a virtual image, and one will have a real image. In that case, which objective lens is the one that the question wants?
 
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  • #2
The objective lens of a microscope is the one near the object being magnified. The other converging lens is the eyepiece.
 
  • #3
thank you very much!
 

1. What is a ray diagram in optics?

A ray diagram is a graphical representation of how light travels through a system of lenses or mirrors. It shows the path of light rays as they enter and exit the system, and can be used to determine the location and size of images formed by the system.

2. How do I complete a ray diagram?

To complete a ray diagram, you will need to draw a principal axis (the line perpendicular to the surface of the lens or mirror), mark the center of curvature (for a lens) or focal point (for a mirror), and draw at least two incident rays from an object to the lens or mirror. The point where these rays intersect will indicate the location and size of the image.

3. What are the different types of lenses and mirrors used in ray diagrams?

There are two types of lenses - convex (converging) and concave (diverging). Convex lenses are thicker in the middle and cause light rays to converge, while concave lenses are thinner in the middle and cause light rays to diverge. Mirrors can also be convex or concave, with similar effects on light rays.

4. Can a ray diagram be used to predict the behavior of light in all situations?

No, ray diagrams are a simplified representation and do not account for all factors that may affect the behavior of light, such as diffraction or interference. They are most accurate for simple, idealized systems and may not accurately predict the behavior of light in more complex situations.

5. How is a ray diagram helpful in understanding optics?

A ray diagram provides a visual representation of how light behaves in a system of lenses or mirrors. It can help us understand how images are formed and how they may be affected by different factors, such as the distance between objects and the lens or mirror, or the type of lens or mirror used.

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