# Can a virtual object be on the same side of the image?

I am reading about lenses and I came across a post: What is exactly an ‘virtual object’ ? ( From the point of view of lens maker’s formula ) , which defines virtual object as follows-

"Virtual object" - is some where in the direction where the light ray is coming FROM, not where, it is going TO and so the virtual object and final image are not on the same side.

But my textbook is contradictory. According to my textbook, the virtual object and the image are on the same side. The following are screenshots from my textbook:

So, which one is correct ?

• In case of convex lenses as described in the chapter you show, yes, the virtual object only takes into account the first refraction INTO the lens and will be to the right side of I. If, of course, $\mu_1$ < $\mu_2$. – Aziraphale Feb 28 '18 at 9:07