What is meant by oscillating electric dipole?

To understand the meaning of oscillating electric dipole, first we take two opposite charges located at a distance d along z-direction at points A and B. Basically, this pairs of charges form an electric dipole with associated dipole moment (p) being directed along z-direction (as shown in figure 1).

Which of the following type of radiation are radiated by an oscillating electric charge?

Electromagnetic radiation, is a form of energy emitted by moving charged particles. As it travels through space it behaves like a wave, and has an oscillating electric field component and an oscillating magnetic field. These waves oscillate perpendicularly to and in phase with one another.

What is magnetic dipole radiation?

The electric field is always transverse, and the total field arises from a harmonic magnetic dipole. For this reason, this kind of radiation is called either magnetic dipole (M1) radiation or transverse electric radiation.

What is dipole emission?

DIPOLE EMISSION NEAR PLANAR INTERFACES. decaying exponentially in normal direction and propagating along the interface. If the second interface is approached, the evanescent wave will be transformed into a propagating wave in the lowest region (optical tunneling).

What is induced dipole moment?

Hint: Induced dipole moment is the dipole moment which has occurred due to induction of charge by the action of the other molecule. Polarizability is the ratio of induced dipole moment, and the field which is applied to it.

What causes electromagnetic radiation?

EM radiation is created when an atomic particle, such as an electron, is accelerated by an electric field, causing it to move. The movement produces oscillating electric and magnetic fields, which travel at right angles to each other in a bundle of light energy called a photon.

What are types of electromagnetic radiation?

In order of increasing frequency / decreasing wavelength, they can be:

• radio waves.
• microwaves.
• infrared radiation.
• visible light.
• ultraviolet radiation.
• X-rays.
• gamma rays.

What is the difference between magnetic dipole and electric dipole?

In electromagnetism, there are two kinds of dipoles: An electric dipole deals with the separation of the positive and negative charges found in any electromagnetic system. A magnetic dipole is the closed circulation of an electric current system.

What is a magnetic dipole and why is it called dipole?

magnetic dipole, generally a tiny magnet of microscopic to subatomic dimensions, equivalent to a flow of electric charge around a loop. Electrons circulating around atomic nuclei, electrons spinning on their axes, and rotating positively charged atomic nuclei all are magnetic dipoles.

What is a dipole dipole intermolecular force?

Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule. They are much weaker than ionic or covalent bonds and have a significant effect only when the molecules involved are close together (touching or almost touching).

What is difference between electric dipole and magnetic dipole?

An electric dipole deals with the separation of the positive and negative charges found in any electromagnetic system. A magnetic dipole is the closed circulation of an electric current system. A simple example is a single loop of wire with constant current through it.

How does an oscillating electric dipole generate electromagnetic radiation?

An oscillating electric dipole (an antenna) is used to generate electromagnetic radiation. It is a pair of electric charges that vary sinusoidally with time such that at any instant the two charges equal magnitude but opposite sign. One charge could be equal to q(t) Qcos(t) and the other to –q(t), where w is the angular frequency.

Which device is used to generate electromagnetic radiation?

An oscillating electric dipole (an antenna) is used to generate electromagnetic radiation. It is a pair of electric charges that vary sinusoidally with time such that at any instant the two charges equal magnitude but opposite sign. One charge could be equal to

How do you find the coordinate of an oscillating dipole?

We can treat the oscillating dipole as a current carrying wire of length d oriented along z-axis such that the center O of the dipole is located at the origin z=0. Then the coordinate of one end A of wire is z=-d/2 and the coordinate of another end B is z=-d/2 (see above figure). And we can consider length element dl = dz. The current

Do you know the physics behind electromagnetic radiation?

In the modern world, we humans are completely surrounded by electromagnetic radiation. Have you ever thought of the physics behind these travelling electromagnetic waves? The great scientist Heinrich Hertz was the first man to transmit and detect electromagnetic waves.