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Verified answer
ALAT OPTIK• teropong
pengamatan tidak berakomodasi
Pob = 1,25 D
Pok = 25 D
M = __?
L = __?
jarak fokus
fob = 100 / Pob
fob = 100 / 1,25 = 80 cm
fok = 100 / Pok
fok = 100 / 25 = 4 cm
Perbesaran sudut
M = fob / fok
M = 80 / 4 = 20 kali ← jwb
Panjang tubus teropong
L = fob + fok
L = 80 + 4 = 84 cm ← jwb