# (a) Draw a graph of a linearly polarised em wave propagating in the z-direction showing the directions of the oscillating electric and magnetic fields.(b) Write the relations (i) between the speed of light and the amplitudes of electric and magnetic fields, (ii) for the speed of em waves in terms of a permittivity $\varepsilon _{0}$, and magnetic permeability, $\mu _{0}$,  of the medium.

(b) (i) The relation between the speed of light and the amplitude of electric and magnetic fields.

$E_{x}= E_{0}\sin (k{z}-wt)$

$B_{y}= E_{0}\sin (k{z}-wt)$

$B_{0} =\frac{ E_{0}}{C}$

(ii) The relation for the speed of em wave in terms of $\varepsilon _{0}$ and $\mu _{0}$ of the medium

Speed of propagation of the wave

$c=\frac{1}{\sqrt{\mu_{o}\varepsilon _{0}}}$

## Related Chapters

### Preparation Products

##### Knockout NEET July 2020

An exhaustive E-learning program for the complete preparation of NEET..

₹ 15999/- ₹ 6999/-
##### Rank Booster NEET 2020

This course will help student to be better prepared and study in the right direction for NEET..

₹ 9999/- ₹ 4999/-
##### Knockout JEE Main July 2020

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 12999/- ₹ 6999/-
##### Test Series NEET July 2020

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 4999/- ₹ 2999/-