Question

calculati:
viteza de propagare a lumini prin : gheata,sticla si vid

Answer 1

c = 300000 km/s (n = 1)

ngheata = 1,31

nsticla = 1,5-1,62 (il luam a fi 1,56, adica la mijloc)

nvid = 1

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ngheata = c/v1 => v1 = c/ngheata = 300000 km/s/1,31 =  229007,63 km/s

nsticla = c/v2 => v2 = c/nsticla = 300000 km/s/1,56 = 192307,69 km/s

nvid = c/v3 => v3 = c/nvid = 300000 km/s/1 = 300000 km/s