Arrange all the seven types of electromagnetic radiations in increasing order of their frequencies. (You must begin with a radiation with the lowest frequency and end with the one having the highest frequency). State how electric vector $\overrightarrow{\mathrm{E}}$, magnetic vector $\overrightarrow{\mathrm{B}}$ and velocity vector $\overrightarrow{\mathrm{C}}$ are oriented in an electromagnetic wave.