If the screen is then removed to a point 15m from the lens, by how much will the separation between the film and the lens have to change from part a?

An object 8.0cm high is placed 80.cm in front of a converging lens of focal point 25cm.  Determine the image position and height.

A lamp 10.cm high is placed 60.cm in front of a diverging lens of focal length 20.cm.  Calculate the image position and height.

A typical single lens camera has a converging lens with a focal length of 50.0mm.  What is the position and size of the image of a 25cm candle located 1.0m from the lens?

A converging lens with a focal length of 20.cm is used to create an image of the sun on a paper screen.  How far from the lens must the paper be placed to produce a clear image?

The focal length of a slide projector’s converging lens is 10.0cm.

1. 1. If a slide is positioned 10.2cm from the lens, how far away must the screen be placed to create a clear image?
   2. If the height of a dog on the slide film is 12.5mm, how tall will the dog’s image be on the screen?
   3. If the screen is then removed to a point 15m from the lens, by how much will the separation between the film and the lens have to change from part a?