76 A small pin fixed on a table top is viewed from above

Last updated: 6/24/2023

76 A small pin fixed on a table top is viewed from above from a distance of 50cm By what distance would the pin appear to be raised if it is viewed from the same point through a 15cm thick glass slab 3 held parallel to table R I of glass 1 15cm 3 5cm 2 10cm 4 35cm