Doubt from ray optics


Q6

Is Ans D?

I'm also getting D

Yes it's D post the solution pls

Are you sure it's (D) bcs if you apply the concept of slab(which according to me it is) the answer comes out to be (C). The answer would be (D) only if you don't apply shifting of the object and image which is conceptually wrong.

I missed ‘t’ in the final answer.

What concept of slab are you talking about?

When an object is placed in front of a slab then both the object and corresponding image undergoes a shift = t(1- 1/u)