Jawaban:
Saya bantu jawab ya
Ditanya
Berapa jarak bayangan? (s' = ?)
Jawab
Karena cermin cekung, maka f bernilai positif (+).
1
�
=
+
′
f
s
4
8
−
2
=8cm
Jarak bayangan positif menandakan bayangan berada di depan cermin.
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Jawaban:
Saya bantu jawab ya
Ditanya
Berapa jarak bayangan? (s' = ?)
Jawab
Karena cermin cekung, maka f bernilai positif (+).
1
�
=
1
�
+
1
�
′
f
1
=
s
1
+
s
′
1
1
4
=
1
8
+
1
�
′
4
1
=
8
1
+
s
′
1
1
�
′
=
1
4
−
1
8
s
′
1
=
4
1
−
8
1
1
�
′
=
2
8
−
1
8
s
′
1
=
8
2
−
8
1
1
�
′
=
1
8
s
′
1
=
8
1
�
′
=
8
�
�
s
′
=8cm
Jarak bayangan positif menandakan bayangan berada di depan cermin.