Ch. 15 Lenses and Refraction
description
Transcript of Ch. 15 Lenses and Refraction
![Page 1: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/1.jpg)
Ch. 15 Lenses and Refractionpgs. 562 – 586
Chapter summary pg. 586
![Page 2: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/2.jpg)
• Lens– A transparent object that refracts light rays– Images are formed through the refraction
of light– Two types:
Convex lens Concave lensConverging lens Diverging lens
![Page 3: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/3.jpg)
• Focal point for a convex lens is the image distance for an infinite object distance
• Lenses have a focal point on each side of the lens
![Page 4: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/4.jpg)
Convex Lens Images
![Page 5: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/5.jpg)
Convex Lens Images
![Page 6: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/6.jpg)
Convex Lens Images
![Page 7: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/7.jpg)
Convex Lens Images
![Page 8: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/8.jpg)
Convex Lens Images
![Page 9: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/9.jpg)
Convex Lens Images
![Page 10: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/10.jpg)
• A Simple Magnifier enables you to examine small objects by producing an enlarged image
• It increases the angular size of an object– Angular size increases when the object
moves closer– Angular size decreases when the object
moves farther away
![Page 11: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/11.jpg)
Concave Lens Image• Diverging lenses only produce one
kind of image
![Page 12: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/12.jpg)
![Page 13: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/13.jpg)
![Page 14: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/14.jpg)
• Positive magnification = image is upright and virtual• Negative magnification = image is real and inverted
M< 1, image is smallerM = 1, image is the same sizeM > 1, image is larger
![Page 15: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/15.jpg)
An object is placed 30.0 cm in front of a converging lens with a focal length of 10.0 cm. Find the image distance and the magnification. Describe the image.
![Page 16: Ch. 15 Lenses and Refraction](https://reader033.fdocuments.net/reader033/viewer/2022051001/56814e95550346895dbc3ed5/html5/thumbnails/16.jpg)
An object is placed 12.5 cm in front of a diverging lens with a focal length of
10.0 cm. Find the image distance and magnification. Describe the image.