Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
For a spherical mirror, the distance between the pole and the centre of the curvature is:
1
half of the radius of curvature
2
twice the distance between pole and F
3
equal to the distance between c and F
4
More than one of the above
5
None of the above