![A 4.0 cm high object is placed at a distance of 60 cm from a concave lens of focal length 20 cm. Find the size of the image. A 4.0 cm high object is placed at a distance of 60 cm from a concave lens of focal length 20 cm. Find the size of the image.](https://dwes9vv9u0550.cloudfront.net/images/4937444/b6fe0fde-a782-45e1-ba50-639de1e499be.jpg)
A 4.0 cm high object is placed at a distance of 60 cm from a concave lens of focal length 20 cm. Find the size of the image.
![A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm ap... - YouTube A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm ap... - YouTube](https://i.ytimg.com/vi/5mJ5ufmjRTc/maxresdefault.jpg)
A convex lens of focal length 20 cm and a concave lens of focal length 10 cm are placed 10 cm ap... - YouTube
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