wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Sometimes, a person suffers from both the defects, myopia and hypermetropia. Which of the following is used to correct this defect?

A
Convex lens
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Concave lens
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Bifocal lens
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Cylindrical lens
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Bifocal lens
Biofocal lenses are used to correct the defect when person suffers from both the defects of vision myopia and hypermetropia.
A biofocal lens has upper portion made of concave lens and lower portion of convex lens with appropriate curvature/ focal length/ power.
The upper portion of the lens facilitates distant vision and lower portion helps in near vision.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Defects & corrections
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon