OpenStudy (anonymous):

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).Determine the lighting (E) on the screen without and with lense.

5 years ago
OpenStudy (anonymous):

E-Illuminance.

5 years ago
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