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OpenStudy (anonymous):
@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.
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OpenStudy (amistre64):
they @physics doesnt work anymore
OpenStudy (amistre64):
@screename pings a person to your post; but other than that youd have to actually post it ti physics for them to see it :)
OpenStudy (anonymous):
ok
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