We have a certain system of lenses:
Lens 1: Focal length: 19.5 cm Lens 2: Focal length : 9.5 cm
I put an object 36 cm away from lens 1. Then, I put lens 2 between lens 1 and a screen. The separation from lens 1 and 2 is 10 cm.
I want to know where the image will be formed.
I get the right numerical answer. However, I cannot seem to understand why we get a "negative m" (ie. a virtual image).
When I draw the ray diagram by hand, I get that the image is real.
Can someone explain to me what is going wrong?