Question

Tentukan perbesaran bayangan benda=

Answer 1

Dik. f=12cm s=15cm
dit. M
1/f=1/s+1/s'
1/12=1/15+1/s'
1/12-1/15=1/s'
5/60-4/60=1/s'
1/60=1/s'
s'=60cm
M=s'/s=60/15=4 kali