
Lensa
Authored by Martinus Sitompul
Physics
8th Grade
Used 8+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sebuah benda terletak 10 cm di depan lensa cembung. Bila fokus lensa 15 cm, berapa jarak bayangan ke lensa?
1.3 di belakang lensa
1.3 di depan lensa
2.3 di belakang lensa
2.3 di depan lensa
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Panjang fokus sebuah lensa cekung (lensa divergen) 30 cm. Benda yang tingginya 5 cm terletak di sebelah kiri lensa tersebut. Tentukan jarak bayangan ?
-10 cm
10 cm
15 cm
-15 cm
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Untuk mendapatkan bayangan yang terletak pada jarak 15 cm di belakang lensa positip yang jarak titik apinya 7,5 cm maka benda harus diletakkan di depan lensa tersebut pada jarak...
2,5 cm
7,5 cm
15 cm
22,5 cm
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebuah benda dengan tinggi 0,12 m berada pada jarak 60 cm dari lensa cembung dengan jarak fokus 40 cm. Tinggi bayangan benda adalah....
6 cm
12 cm
24 cm
36 cm
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Di depan sebuah lensa diletakkan benda pada jarak 25 cm, bayangan yang terbentuk bersifat maya sejauh 50 cm dari lensa. Tentukan besar kuat lensa tadi!
-1 dioptri
+3 dioptri
-2 dioptri
+2 dioptri
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika benda berada di ruang III pada lensa cembung, maka bayangan berada di ruang......
I
II
III
IV
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sifat Bayangan yang berada di ruang II pada lensa cembung adalah....
Nyata, tegak, terbalik, diperkecil
Nyata, terbalik, diperkecil
Maya, terbalik, diperkecil
Maya, tegak, diperkecil
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