Question

Benda terletak 15cm didepan cermin cekung , jika jari jari kelengkungan cermin 20cm , perbesaran bayangannya adalah? pake cara ty

Answer 1

2/r = 1/si + 1/so
2/20 = 1/si + 1/15
1/si = 2/20 - 1/15
1/si = 6/60 - 4/60
1/si = 2/60
1/si = 1/30
si = 30
Perbesaran [M]= si/so
= 30/15
= 2 cm

jadikan terbaik ^_^