Sebuah benda berdiri tegak di atas sumbu utama cermin cekung pada jarak 20 cm. Bayangan nyata benda ini oleh cermin dibentuk pada jarak 30 cm. Tentukanlah jarak fokus cermin dan perbesaran bayangan

Cermin dan lensa

Quiz
•
Physics
•
12th Grade
•
Easy
Topik Topik
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
10 cm
12 cm
14 cm
15 cm
2.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Sebuah benda terletak 10 cm di depan lensa cembung. Bila fokus lensa 15 cm, berapa jarak bayangan ke lensa?
30 cm
25 cm
32 cm
35 cm
3.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Jika benda AB berada di muka cermin cekung dan diketahui jarak AO = 24 cm sedangkan MO = 36 cm, maka bayangan AB berada sejauh...
7,2 cm
14 cm
18 cm
72 cm
4.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Sebuah benda diletakkan di ruang antara F2 dan P2. Di manakah letak bayangannya?
Nyata, diperkecil, terbalik
Nyata , diperbesar, terbalik
Nyata, diperbesar, tegak lurus
Nyata , diperkecil, tegak lurus
5.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Di dalam sebuah cermin cekung, bayangan kepala saya 3 kali besar kepala saya. Bila jarak antara saya dengan cermin cekung 15 cm, tentukan jari-jari kelengkungan cermin tersebut!
22,5 cm
20 cm
25 cm
17,5 cm
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