glass slab of 2.5 cm thickness.with silver foiled on one side.

final image of object ifront of unsilvered side at a dist. of 5cm?

Hello Student,

By the mirror the object will be seen at a distance of 5+(2.5/1.5) 1.5 is refractive index
so the image is formed at this distance in the back of the silvered surface now by the observer at distance 5 cm from the object -image will be seen at ((5+2.5/1.5)+2.5)*1.5+5

Thanks & Regards
Arun Kumar
Askiitians Faculty
IIT Delhi