Physics, 21.08.2019 03:10 errinbaker4683
An object is placed 30 cm in front of a f=+15 cm lens. a lens f=-10 cm is placed 45 cm from the first lens. draw the 3 principal rays to explain the location of the final image.
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An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.
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An object is placed 30 cm in front of a f=+15 cm lens. a lens f=-10 cm is placed 45 cm from the firs...
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