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1. Which mirrors will make an image on a screen?
2. Look at the image of the distant scene produced on the screen by the concave mirror.
3. Describe its appearance.
4. Decide if it is a real or a virtual image.
5. Would the image of the distant scene be the right way up if the mirror were turned upside down? Try it. Explain what happens.
6. What type or types of mirror can produce a real image on a screen?

7. What happens if different concave mirrors with different curvatures (concave mirrors that are curved by different amounts) were used to form images of the distant scene? What is the relationship between the size of the image on the screen and the amount of curvature of the mirror? Try it.

Sagot :

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Answer:

1.Certain curved mirrors can produce images on a screen. Most curved mirrors are called spherical mirrors because their shape follows the surface of a sphere. They can be either concave if they curve inwards or convex if they bulge out at the centre.

2.Concave mirrors can produce both real and virtual images; they can be upright (if virtual) or inverted (if real); they can be behind the mirror (if virtual) or in front of the mirror (if real); they can also be enlarged, reduced, or the same size as object.

3.

4.Images, real and virtual. Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged. Real images occur when objects are placed outside the focal length of a converging lens or outside the focal length of a converging mirror.

5.The diagram shows that as the object distance is decreased, the image distance is decreased and the image size is increased. So as an object approaches the mirror, its virtual image on the opposite side of the mirror approaches the mirror as well; and at the same time, the image is becoming larger.

6.Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted.

7.

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