Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
Which of the following lenses is used to cure astigmatism?
1
Convex Lens
2
Cylindrical Lens
3
Bifocal Lens
4
More than one of the above
5
None of the above