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 #88002
Back to Home
View All OPTICS Questions
53 Views
Question
What is the power of a lens with a focal length of -25 cm?
A. +4 dioptres
B. -0.25 dioptres
C. -4 dioptres
D. +0.25 dioptres
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What is the main reason for making large diameter objectives in optical telescopes?
56
What is the sign of the radius of curvature for a convex mirror?
54
What happens to the image distance v if the object distance u equals the radius of curvature R (u = ...
28