CAHAYA DAN ALAT OPTIK
Authored by Ahmad Fauzan
Science
12th Grade
Used 3+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lukisan bayangan pada cermin datar yang benar adalah ….
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda terletak di antara dua cermin datar yang membentuk sudut 300. Jumlah bayangan benda tersebut adalah …
A. 12 buah
B. 11 buah
C. 10 buah
D. 9 buah
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda berada di depan cermin cekung sejauh 10 cm. Bila jari-jari cermin 30 cm, maka sifat bayangannya adalah …
A. Nyata, diperkecil, dan terbalik
B. Nyata, diperbesar, dan terbalik
C. Maya, diperkecil, dan tegak
D. Nyata, diperbesar, dan tegak
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah benda berada 15 cm di depan cermin cembung. Bila titik fokus cermin 10 cm, maka jarak bayangannya ….
A. 6 cm di depan cermin
B. 6 cm di belakang cermin
C. 30 cm di depan cermin
D. 30 cm di belakang cermin
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bayangan setinggi 2 cm dibentuk oleh cermin cembung dari sebuah benda setinggi 10 cm. Bila jarak fokus cermin 10 cm, maka jarak benda adalah ….
A. 60 cm
B. 16 cm
C. 8 cm
D. 0,8 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui cepat rambat cahaya di udara 3 x 108 m/s dan cepat rambat cahaya pada kaca 2,25 x 108 m/s. Indeks bias kaca tersebut adalah …
A. 4/3
B. 5/3
C. 2
D. 7/3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bayangan yang dibentuk cermin cembung bersifat ….
A. Maya, tegak, dan diperbesar
B. Maya, tegak, dan diperkecil
C. Nyata, tegak, dan diperbesar
D. Nyata, tegak, dan diperkecil
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