Question

DI JAWAB YAA!!!
PLISS DI JAWAB NOMOR 4,5 YAA!!!
PAKAI CARANYA YAA!!!

Answer 1

Jawaban:

4. M = 5,71 x

5. fob = 800 cm

Penjelasan:

4. fob = 4 cm; fok = 10 cm; dan d = 23 cm

M = Mob x  Mok

M = (s'ob/sob) x (s'ok/sok)

1/fob = 1/sob + 1/s'ob

1/4 = 1/5 + 1/s'ob

1/s'ob = 1/4 - 1/5 = 1/20

s'ob = 20 cm

d = s'ob + sok

23 = 20 + sok

sok = 3 cm

1/fok = 1/sok + 1/s'ok

1/10 = 1/3 + 1/s'ok

1/s'ok = 1/10 - 1/3 = -7/30

s'ok = -30/7 cm

M = (20/5) x ((30/7) / 3) = (20/5) x (30/21)

M = 600 / 105

M = 5,71 x

5. M = 40 x; fok = 20 cm

M = fob/fok

40 = fob / 20

fob = 800 cm