Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Units and Dimensional Formula
In which of the following units a wavelength can be measured?
1
Angstrom
2
Parsec
3
Decibel
4
More than one of the above
5
None of the above