@physics HI,please help. Problem: converging thin lense. In its focal point F(F=0.1m) is light source(point) and there is screen perpendicular to optical axis (1m far from lense).What is the lighting(E) on the screen without and with lense.

Question

@physics HI,please help. Problem: converging thin lense. In its focal point F(F=0.1m) is light source(point) and there is screen perpendicular to optical axis (1m far from lense).What is the lighting(E)  on the screen without and with lense.

amistre64 · Answer

they @physics doesnt work anymore

amistre64 · Answer

@screename  pings a person to your post; but other than that youd have to actually post it ti physics for them to see it :)

anonymous · Answer

ok