GusAgung
Diketaui : R = 24 cm f = 24 cm / 2 = 12 cm s' = 36 cm ditanya : s = .......... ? jawab : 1/s + 1/s' = 1/f 1/s + 1/36 cm = 1/ 12 cm 1/s = 1/12 cm - 1/36 cm 1/s = 3/36 cm - 1/36 cm 1/s = 2/36 cm s = 36 cm / 2 s = 18 cm jadi jarak benda dari cermin sebesar 18 cm semoga benar dan jika salah mohon maaf.
R = 24 cm
f = 24 cm / 2 = 12 cm
s' = 36 cm
ditanya :
s = .......... ?
jawab :
1/s + 1/s' = 1/f
1/s + 1/36 cm = 1/ 12 cm
1/s = 1/12 cm - 1/36 cm
1/s = 3/36 cm - 1/36 cm
1/s = 2/36 cm
s = 36 cm / 2
s = 18 cm
jadi jarak benda dari cermin sebesar 18 cm
semoga benar dan jika salah mohon maaf.