The dimension of \(\frac { 1 }{ { \mu }_{ 0 }{ \varepsilon }_{ 0 } } \) is _____.

During the propagation of electromagnetic waves in a medium __________________.

The EM waves do not transport _______________.

Which EM waves are used in medicine to destroy cancer cells?

A magnetic field is produced by ____________.

What is meant by Fraunhofer lines?

Write the uses of Radio waves.

Write the uses of Micro waves.

Why are Infrared radiation referred to as heatwaves? Name the radiations, which are next to these radiation having
(i) shorter λ
(ii) longer λ.

Draw a diagram depicting oscillating electric and magnetic field of an electromagnetic wave.

What is the orgin of displacement currtent?

Consider a parallel plate capacitor which is connected to an 230 V RMS value and 50 Hz frequency. If the separation distance between the plates of the capacitor and area of the plates are 1 mm and 20 cm² respectively. Calculate the displacement current at t = 1 s.

Write down the properties of electromagnetic waves.

Discuss the source of electromagnetic waves.

Explain the types of emission spectrum.

Explain the types of absorption spectrum.

Write the frequency source of production and uses of Ultraviolet radiation.

Let an electromagnetic wave propagate along the x-direction, the magnetic field oscillates at a frequency of 10¹⁰ Hz and has an amplitude of 10⁻⁵ T, acting along the y-direction. Then, compute the wavelength of the wave. Also write down the expression for electric field in this case.

In a plane Electromagnetic wave, the electric field oscillates sinusoidally at a frequency of 1.5 x 10¹⁰Hz with & an amplitude of 36 Vm^-1.
(i) What is the wavelength of a wave?
(ii) What the amplitude of the oscillating magnetic field?
(iii) Straight the average energy density of the electric field \(\left( \overrightarrow { E } \right) \), is equal to average energy density of the magnetic field \(\left( \overrightarrow { B } \right) \)

Use the formula E = h૪ (for energy of a quantum of radiation photon) and obtain the photon energy in units of ev for different parts of the Electromagnetic spectrum. In what ways are the different scales of photon energies that you obtain related to the sources of Electromagnetic radiation?