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02.07.2019 •
Physics
A)convex lens is plac monochromatic red light. when viewed from above, concentric bands of red and dark are observed. what does one observe at the exact center of the lens where the lens and the glass plate are in direct contact? a) a bright red spot b) a dark spot c) a rainbow of color convex lens is placed on a flat glass plate and illuminated from above with d) a bright spot that is some color other than red b
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Ответ:
C. bottle opener
B. Force x distance