What is the SI unit of mass?
3
4
7
10
The flux entering and leaving a closed surface are 5×10^5 and 4×10^5 in si unit the charge inside the surface is
-8.85×10^-7 c
8.85×10^-7
-6.85×10^7
6.85×10^-7
An electromagnetic wave travelling through a transparent medium is given by Ex(y,t)=Eoxsin2π[y5×10−7−4×1014t] in SI units. Then what is the refractive index of the medium?