Home
Class 12
PHYSICS
How is the speed of EM waves in vacuum d...

How is the speed of EM waves in vacuum determined by the electric and magnetic fields ?

Text Solution

Verified by Experts

Speed of em-waves is given `C = E_(0)//B_(0)`.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-I (SECTION-B)|5 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET-I (SECTION-C)|13 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise Section-E|18 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise SECTION D|6 Videos

Similar Questions

Explore conceptually related problems

What is the speed of e.m. waves in vacuum?

In a region of space with mutually perpendicular electric and magnetic fields, a charged particle moves without deflection, with a speed very much smaller tan the speed of light in vacuum (c). The energy densities due to the electric and magnetic fields are u_(E) and u_(B) respectively.

A : In an EM wave the magnitude of the electric field vector is more than the magnitude of the magnetic field vector. R : Energy of the EM wave is shared equally between the electric and magnetic fields.

If EM wave is travelling in y-direction then pairs of electric and magnetic field are

Write the relation for the speed of electromagnetic wave in terms of the amplitudes of electric and magnetic fields.

When light propagates in vacuum there is an electric field and a magnetic field. These fields

The speed of electromagnetic wave in vacuum

What is the intensity of an electromagnetic wave in terms of electric and magnetic field?