Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
Which are the two colors that are formed at the two extreme ends of Prism?
1
Blue and Green
2
Yellow and Orange
3
Violet and Red
4
More than one of the above
5
None of the above