Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Optics Refraction and Reflection
Which of the following mirrors is used for solar energy storage in solar cookers?
1
Concave
2
Convex
3
Plane
4
More than one of the above
5
None of the above