Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Optics Refraction and Reflection
A hollow convex lens of glass will behave like a-
1
convex lens
2
concave lens
3
glass plate
4
More than one of the above
5
None of the above