Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Units and Dimensional Formula
Which of the following is a unit used to measure refractive power of a lens?
1
Bar
2
Dioptre
3
Watt
4
More than one of the above
5
None of the above