Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
An incident ray makes an angle of 30° with a plane mirror. Then the angle of reflection is-
1
None of these
2
60°
3
30°
4
More than one of the above
5
None of the above