Give the range of wavelength of visible light.

Which of the following radiations of electromagnetic waves has the highest wavelength?

Light of wavelength $1 \,nm$ belongs to the following class of waves:

The radiation of frequency $1057 \ MHz$ coming from two close energy levels of hydrogen belongs to which part of the electromagnetic spectrum?

Match List-$I$ with List-$II$:

List-$I$ (Electromagnetic wave)	List-$II$ (Production)
$A$. Microwave	$I$. Electrons in atoms emit light when they move from a higher energy level to a lower energy level
$B$. Visible light	$II$. Radioactive decay of nucleus
$C$. Gamma rays	$III$. Vibration of atoms and molecules
$D$. Infra-red rays	$IV$. Klystron valve or magnetron valve

Choose the correct answer from the options given below:

Frequencies of various radiations are given as:
$v_v \rightarrow$ Visible light
$v_r \rightarrow$ Radio Wave
$v_{uv} \rightarrow$ Ultraviolet Waves
Then which of the following is true?