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a.M=h'/h
=1,5/3=0,5 kali
M=s'/s
1/2=s'/s
s=2s'
1/f=1/s+1/s'
1/10=1/2s'+1/s'
1/10=3s'/2s' ^2
1/10=3/2s'
2s'=30
s'=15 cm..mka s=2s'=2.15=30 cm
b. s'=15 cm
d.sifat:nyata,trbalik,dperkcil
4)
M=s'/s
5s=s'
1/f=1/s+1/s'
1/10=1/s+1/5s
1/10=6s/5s^2
1/10=6/5s
5s=60
s=12 cm
5)
lensa cmbung→So:+ ,Si:+
lensa ckung→So:+ ,Si: -