The following table gives the wavelength range of some constituents of the electromagnetic spectrum. Select the wavelength range and name the electromagnetic waves that are
(i) Widely used in the remote switches of household electronic devices.
(ii) Produced in nuclear reactions.

S. No.	Wavelength
$1$	$1 \mathrm{mm}\text{ to }700 \mathrm{nm}$
$2$	$400 \mathrm{nm}\text{ to }1000 \mathrm{nm}$
$3$	$1 \mathrm{mm}\text{ to }{10}^{-3} \mathrm{nm}$
$4$	$<{10}^{-3} \mathrm{nm}$