Easy -2.5 This is not a mathematics question at all—it's a physics/communication theory question about dimensionless constants. It requires no mathematical calculation or technique, only conceptual understanding that dimensionless ratios are universal while dimensional quantities depend on arbitrary unit systems. Trivial from a mathematical perspective.
1 Explain why the number 1836.108 for the ratio Rest mass of electron would be suitable for communication with other civilisations whereas neither the rest mass of the proton nor that of the electron would be.
1 Explain why the number 1836.108 for the ratio Rest mass of electron would be suitable for communication with other civilisations whereas neither the rest mass of the proton nor that of the electron would be.\\
\hfill \mbox{\textit{OCR MEI C4 Q1}}