Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Optics Refraction and Reflection
_______ are commonly used as rear view mirrors in vehicles.
1
Convex mirror
2
Plane mirror
3
Concave mirror
4
More than one of the above
5
None of the above