Which one of the following has the minimum wavelength?

Write the range of frequencies for radio waves and $FM$ band radio.

Which of the following radiations has the least wavelength?

The energy of a gamma $(\gamma)$ ray photon is $E_{\gamma}$,and that of an $X$-ray photon is $E_{X}$. If the visible light photon has an energy of $E_{v}$,then we can say that:

If an electron oscillates at a frequency of $1 \, GHz$,it emits:

Match List-$I$ (Wavelength range of electromagnetic spectrum) with List-$II$ (Method of production of these waves) and select the correct option from the options given below the lists:

List-$I$	List-$II$
$(1)$ $700\, nm$ to $1\, mm$	$(i)$ Vibration of atoms and molecules
$(2)$ $1\, nm$ to $400\, nm$	$(ii)$ Inner shell electrons in atoms moving from one energy level to a lower level
$(3)$ $< 10^{-3}\, nm$	$(iii)$ Radioactive decay of the nucleus
$(4)$ $1\, mm$ to $0.1\, m$	$(iv)$ Magnetron valve