Related Questions
Length is measured in metre and time in second as usual. But a new unit of mass is so chosen that G=1. This new unit of mass is equal to
Universal time is based on
Rotation of earth on its axis
Oscillations of quartz crystal
Vibrations of cesium atom
Earth’s orbital motion around the sun
The SI unit of electrochemical equivalent is
Kg C
The unit of momentum is
N s
N m
Which of the following is the smallest unit
Millimetre
Angstrom
Fermi
Metre
The time taken by an electron to go from ground state to excited state is one shake (one shake = s) this time in nanosecond will be
10 ns
4 ns
2 ns
25 ns
The surface tension of a liquid is 70 dyne/cm, in MKS system value is
The unit of surface tension in SI system is
Newton /m
Dyne/cm
Wavelength of ray of light is 0.00006 m. It is equal to
6 micron
60 micron
600 micron
0.6 micron