OPTIKA
Quiz
•
Physics
•
8th Grade
•
Hard
Fitri Astutik
Used 16+ times
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Benda setinggi 6 cm berada di depan cermin cekung yang berjari-jari 30 cm. Bila jarak benda ke cermin 20 cm. Maka jarak bayangan adalah....
120 cm
80 cm
60 cm
40 cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gambar tersebut penerapan dari ...
cermin cekung
cermin cembung
lensa cekung
lensa cembung
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu benda tingginya 4 cm berada 30 cm di depan lensa cembung yang berjarak fokus 20 cm. Jarak bayangan yang terbentuk adalah ....
80 cm
60 cm
40 cm
50 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Benda diletakkan 6 cm di depan lensa cembung dengan fokus 4 cm, bayangan yang terbentuk adalah …..
Maya pada jarak 2 cm
Nyata pada jarak 2 cm
Nyata pada jarak 12 cm
Maya pada jarak 12 cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda berada di depan cermin cembung. Jarak benda dan bayangan 15 cm. Jika perbesaran ½ kali, maka jari-jari cermin cembung tersebut adalah ...
-20 cm
-10 cm
25,5 cm
30 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda diletakkan 10 cm di muka sebuah lensa cembung yang mempunyai jarak fokus 20 cm. Tentukan letak dan sifat bayangan yang terbentuk !
20 cm , nyata dan diperkecil
- 20 cm , maya dan diperkecil
- 20 cm , maya dan diperbesar
20 cm , nyata dan diperbesar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Benda diletakkan 7 cm di depan cermin cekung berjari-jari 12 cm. Bayangan yang diperoleh…..
Nyata diperbesar
Nyata diperkecil
Maya diperbesar
Maya diperkecil
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