Дано:
F = 0.2 м
f = 0.22 м
Найти:
d - ?
Решение:
1/f + 1/d = 1/F
1/d = (f-F)/Ff
d = Ff/(f-F)
d = 0.2*0.022/(0.022-0.2) = 0.0044/(-0.178) ~ 0.02(м)
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Дано:
F = 0.2 м
f = 0.22 м
Найти:
d - ?
Решение:
1/f + 1/d = 1/F
1/d = (f-F)/Ff
d = Ff/(f-F)
d = 0.2*0.022/(0.022-0.2) = 0.0044/(-0.178) ~ 0.02(м)