indyaldrin14
3. jarak benda = jarak bayangan jadi jarak bayangan Rita ke cermin datar adalah 2 meter ( 200cm)
0 votes Thanks 0
Ufam
#Nomer3 Karena cermin datar jadi s = s' s = 2 m = 200 cm s' = 200 cm ______________________ #Nomer4 R = 20 cm s' = 12 cm 2/R = 1/f 2 / 20 = 1 / f f = 20 / 2 . 1 = 10 cm s = f . s' / s' - f = 10 . 12 / 12 - 10 = 120 / 2 = 60 cm M = s' / s = 12 / 60 = 0,2 kali ________________ #Nomer5 s = 30 cm s' = -10 cm M ? M = s' / s = 10 / 30 = 1/3 kali f ? 1/f = 1/s + 1/s' = 1/30 + 1/10 = 4 / 30 f = 30 . 1 / f = ( -7,5 cm )
jadi jarak bayangan Rita ke cermin datar adalah 2 meter ( 200cm)
Karena cermin datar jadi s = s'
s = 2 m = 200 cm
s' = 200 cm
______________________
#Nomer4
R = 20 cm
s' = 12 cm
2/R = 1/f
2 / 20 = 1 / f
f = 20 / 2 . 1
= 10 cm
s = f . s' / s' - f
= 10 . 12 / 12 - 10
= 120 / 2
= 60 cm
M = s' / s
= 12 / 60
= 0,2 kali
________________
#Nomer5
s = 30 cm
s' = -10 cm
M ?
M = s' / s
= 10 / 30
= 1/3 kali
f ?
1/f = 1/s + 1/s'
= 1/30 + 1/10
= 4 / 30
f = 30 . 1 / f
= ( -7,5 cm )