1/f = 1/s + 1/s'
1/20 = 1/10 + 1/s'
1/s' = 1/10 - 1/20
1/s' = 2/20 - 1/20
1/s' = 1/20
s' = 20 cm
M = | s'/s | = 20/10 = 2
jika ingin perbesaran ¼ kali semula
maka 2 x ¼ = 0,5 kali
M = | s'/s |
1/2 = 20/s
s = 40 cm
jadi, Bika harus menggeser benda 20 cm menjauhi lensa
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1/f = 1/s + 1/s'
1/20 = 1/10 + 1/s'
1/s' = 1/10 - 1/20
1/s' = 2/20 - 1/20
1/s' = 1/20
s' = 20 cm
M = | s'/s | = 20/10 = 2
jika ingin perbesaran ¼ kali semula
maka 2 x ¼ = 0,5 kali
M = | s'/s |
1/2 = 20/s
s = 40 cm
jadi, Bika harus menggeser benda 20 cm menjauhi lensa