$\begin{array}{ccc}\text{Column I}& & \text{Column II}\\ \left(a\right)\text{All electromagnetic waves including visible light}& \left(p\right)& \text{microwaves}\\ \left(b\right)\text{Electromagnetic waves whose frequency is in the range 500 kHz to 1000 MHz}& \left(q\right)& \text{have the same speed c in vacuum}\\ \left(c\right)\text{The force exerted by an electromagnetic wave on unit area of surface}& \left(r\right)& \text{radio waves}\\ \left(d\right)\text{The shortest wavelength radio waves}& \left(s\right)& \text{radiation pressure}\end{array}$

The pressure exerted by electromagnetic wave of intensity I on a non - reflecting surface is ( where c= velocity of light ):

The pressure exerted by an electromagnetic wave of intensity $I\left(W{m}^{-2}\right)$ on a non-reflecting surface is ( c is the velocity of light)

The pressure exerted by an electromagnetic wave of intensity l $\left({\text{watt/m}}^2\right)$ on a nonreflecting surface is [c is the velocity of light]

An electromagnetic wave of intensity I falls on a surface kept in vacuum and exerts radiation pressure $p$ on it.Which of the following are true ?

The continuum of electromagnetic radiation that ranges from short wave high frequency cosmic radiations to long wavelength low frequency radio waves is called:

Different kinds of electromagnetic radiations are simply electromagnetic waves with different
(i) wavelengths (ii) frequencies
(iii) speeds

Arrrange the following electromagnetic waves in the order of their increasing wavelength:
(a) $\gamma$-rays (b) microwaves.
(c) x-rays (d) Radiowaves.

A : Light waves can be polarised.
R : All electromagnetic waves move with same speed in vacuum.

A : All electromagnetic waves travel through vacuum with same speed by they have different wavelength or frequency.
R : The wavelength of the electromagnetic waves is often correlated with and characteristic size of the system that produces and radiates them.

Name the following electromagnetic waves and arrange them in decreasing order of their wavelength: (a) Electromagnetic waves which are used for sterilizing surgical equipments
(b) Electromagnetic waves which are emitted from the nuclei of radioactive atoms
(c) Electromagnetic waves which are used by FM radio station for broadcasting
(d) Electromagnetic waves which are produced when fast moving electrons are stopped by a heavy metal target.