Hi there,

I have a few questions for you all!

1. An inverted image half the size of an object is required. If the object must be placed 120mm from the lens, what is the power of the lens and where would the image form?

2. Calculate the power of the lens required to produce an upright virtual image which is 0.8x the size of the object, if the object distance is to be 100mm.

3. What is the size and position of the image produced when an object 36mm high is placed 25mm outside the focal length of a +8.00D lens?