The Total solution for NCERT class 6-12
Asmall pin fixed on a table top is viewed from above from a distance of 50 cm.By what distance would the pin appear to be raised if it is viewed from thesame point through a 15 cm thick glass slab held parallel to the table?Refractive index of glass = 1.5. Does the answer depend on the location of theslab?
Actual depth of the pin, d =15 cm
Ratio of actual depth tothe apparent depth is equal to the refractive index of glass, i.e.
The distance at which the pin appears to beraised =
Fora small angle of incidence, this distance does not depend upon the location ofthe slab.