Content protected from screenshots
GKFix.in
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
GKFix.in
Home
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
Start Quiz
GKFix MCQ Question
Test your knowledge and learn something new
Home
OPTICS
Question #87053
Back to Home
View All OPTICS Questions
12 Views
Question
What is the focal length of a concave mirror if its radius of curvature is 20 cm?
A. +10 cm
B. –10 cm
C. +20 cm
D. –20 cm
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
Why can't the mirror equation predict image brightness?
12
What is the main reason for assuming the optical centers of two thin lenses in contact are 'coincide...
7
What is the primary source of natural light on Earth?
14
Which country made a historic comeback from 2-0 down to qualify for the Davis Cup Final 8 in Marbell...
(Current Affairs)
12
What amount has the BCCI announced as a reward for the Indian women’s cricket team following their...
(Current Affairs)
10