Content protected from screenshots
GKFix.in
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
Home
My Profile
General Knowledge
Categories
Concept Builder
Start Quiz
Logout
GKFix MCQ Question
Test your knowledge and learn something new
Home
OPTICS
Question #88025
Back to Home
View All OPTICS Questions
43 Views
Question
If a lens has a power of +5.0 D, what is its focal length in centimeters?
A. -20 cm
B. +20 cm
C. +50 cm
D. -50 cm
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What is the direction of the reflected ray if the incident ray is along the principal axis towards t...
21
For which medium is the critical angle approximately 48.75°?
55
What is the behavior of a ray that is incident at the pole of a concave mirror at an angle?
44