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катя16107
@катя16107
July 2022
1
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как посчитать фокусное расстояние если d=0.28 f=0.25
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sergeygutsko
1/F = 1/d + 1/f,
1/F = (d+f)/(df),
F = df/(d+f).
F =
0.28*0.25/0.53 =
0.13
.
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Answers & Comments
1/F = (d+f)/(df),
F = df/(d+f).
F = 0.28*0.25/0.53 = 0.13.