Two thin converging lenses and intermediate image.

In summary, two thin lenses with the same focal length are arranged with an intermediate image to the right of one of the lenses. The distance between the lenses is marked as d and the final image can be found at a distance of 2d + 2f from the lens. The equation 1/p + 1/q = 1/f can be used to calculate the final image location.
  • #1
grooveactiva
9
0

Homework Statement


Here is the layout of 2 lenses:

-----------------(1)------------(2)-------------I--------------

Two thin lenses, numbered 1 and 2, with the intermediate image "I" is to the right of one of the lenses. The distance between the lenses is lettered d.
Both lenses have the same focal length, f.

Find the final image.

Homework Equations


1/p + 1/q = 1/f


The Attempt at a Solution



What confuses me is how can the intermediate image be to the left.
I'm not sure where the light should be coming from.
 
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  • #2
Assuming that the light is coming from the left, then the image should be to the right of lens 1. The distance between the lenses is d, so the image should be at a distance of d + f from the lens. Then the final image should be at a distance of 2d + 2f from the lens.
 

1. What are two thin converging lenses and intermediate image?

Two thin converging lenses refer to two lenses placed close together, with the second lens positioned where the first lens's focal point is located. An intermediate image is formed between the two lenses, which can be either a real or virtual image.

2. How do two thin converging lenses create an intermediate image?

When light passes through the first lens, it is refracted and forms an image. This image then acts as the object for the second lens, which further refracts the light and creates an intermediate image between the two lenses.

3. What is the difference between a real and virtual intermediate image?

A real intermediate image is formed when the light rays actually converge at a point to form an image. This image can be projected onto a screen. In contrast, a virtual intermediate image is formed when the light rays appear to converge at a point, but do not actually do so. This image cannot be projected onto a screen.

4. Can an intermediate image be magnified or reduced?

Yes, the size of an intermediate image can be adjusted by changing the distance between the two lenses. If the distance is increased, the image will be reduced, and if the distance is decreased, the image will be magnified.

5. How can the position of an intermediate image be determined?

The position of an intermediate image can be determined using the thin lens equation, which takes into account the focal lengths and distances between the lenses. It can also be determined by tracing the light rays from the object to the final image using ray diagrams.

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