State two properties of electromagnetic waves?

Answer 1

Electromagnetic wave is a form of transmitted energy. Electromagnetic radiation

is so-named because it has electric and magnetic fields that simultaneously oscillate in

planes mutually perpendicular to each other and to the direction of propagation through

space.

Electromagnetic wave has the dual nature ,i.e ,it exhibits wave properties and particulate properties both.A particle on the classical view is a concentration of energy and other properties in space and time, whereas a wave is spread out over a larger region of space and time. An electromagnetic wave is supposed to have both characters.

Answer 2

1. Electromagnetic waves do not require a medium to propagate; they can travel through vacuum.
2. Electromagnetic waves have varying wavelengths and frequencies, forming a spectrum that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

Answer 3

Electromagnetic waves do not have a mass and Polarization of electromagnetic waves is possible.

Others are listed below,

• Light travels through space in the form of electromagnetic waves.
• The earth receives maximum amount of electromagnetic energy from the sun. This energy reaches the earth through a vacuum.
• Electromagnetic waves can travel through vacuum, i.e., they do not require a medium for transmission.
• Electromagnetic waves are two dimensional transverse waves, i.e., the transfer of energy is perpendicular to the oscillations.
• All types of electromagnetic waves travel at the speed of light and at the same speed in vacuum.
• Electromagnetic waves have no mass.
• As the wavelength in the spectrum decreases, the amount of energy carried by the waves increase. This can be illustrated by the formula,

  E= hc/λ

  (where E is the energy, h is Planck's constant, c is speed of light in vacuum and λ is wavelength)

• Polarization of electromagnetic waves is possible.
• Velocity of electromagnetic wave is equal to the speed of light, which is approximately 3×108 m/sec
• Properties of electromagnetic waves also include that they are neither affected by electric nor magnetic fields.
• Electromagnetic waves follow the laws of reflection as well as refraction.
• The frequency of the waves remain same when they change medium during transmission.
• There is an entire spectrum of electromagnetic waves which include waves with low as well as higher frequencies. High frequency electromagnetic waves are known as electromagnetic radiations, whereas those with low frequency are called electromagnetic fields.
• Electromagnetic radiations act as waves as well as photons having no mass.
• Different types of electromagnetic waves that comprise the electromagnetic spectrum are infrared waves, ultraviolet rays, visible light rays, X-rays, gamma rays, micro waves and radio waves. They just differ in wavelengths.

Answer 4

Electromagnetic radiation has electric and magnetic fields that are perpendicular to one another.