Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Optics Mirrors and Images
Which lens is also called converging lens?
1
Concave lens
2
Convex lens
3
Both concave and convex lens
4
More than one of the above
5
None of the above