The frequency range from $3\, MHz$ to $30\, MHz$ is known as:

Match List $I$ with List $II$ of electromagnetic waves with their corresponding wavelength ranges:

List $I$	List $II$
$(A)$ Microwave	$(I)$ $400\,nm$ to $1\,nm$
$(B)$ Ultraviolet	$(II)$ $1\,nm$ to $10^{-3}\,nm$
$(C)$ $X$-Ray	$(III)$ $1\,mm$ to $700\,nm$
$(D)$ Infra-red	$(IV)$ $0.1\,m$ to $1\,mm$

Choose the correct answer from the options given below:

Which of the following waves has the maximum wavelength?

The range of wavelength for ultraviolet is from . . . . . . .

Which of the following is not an electromagnetic wave?

Which of the following groups of electromagnetic waves is in increasing order of frequency?