Electromagnetic Waves Archives

Which radiations are used in tratement of muscles ache? Options (a) Ultraviolet (b) Infrared (c) Microwave (d) x-rays Correct Answer:…

7 years ago

An electromagnetic wave of frequency v = 3.0 MHz passes from vacuum into a dielectric medium with relative permittivity ε…

7 years ago

The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum…

7 years ago

The electric field associated with an e.m. wave in vacuum is given by E = i 40 cos (kz -…

7 years ago

The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is Options (a) microwave, infrared, ultraviolet, gamma rays…

7 years ago

The electric and magnetic field associated with an E.M. wave, propagating along the +z axis, can be represented by Options…

7 years ago

which of the following statement is false for the properties of electromagnetic waves? Options (a) Both electric and magnetic field…

7 years ago

The electric field part of an electromagnetic wave in a medium is represented by Ex = 0 Ey = 2.5…

7 years ago

If c is the velocity of light in free space, the time taken by light to travel a distance x…

7 years ago

The velocity of electromagnetic radiation in a medium of permittivity ε₀ and permeability μ₀ is given by Options (a) √(ε₀…

7 years ago