Electromagnetic waves, Physics

Assignment Help:

Find amplitude of electric field ina parallel beam of light of intensity 2W/m2

Ans:

Given that intensity I=power/area=2W/M2

by using this formula :intensity I=(Emax^2/2c mue not)

from that Emax=magnitude of electric field

c=velocity of light=3*10^8m/sec

mue not =4pi*10^-7

Emax=38.82 N/m


 


Related Discussions:- Electromagnetic waves

Derive equation for an electromagnetic wave, Derive mathematical equation f...

Derive mathematical equation for an electromagnetic wave travelling in a charge free conducting medium in terms of electric field vector.

Why capacitor blocks d.c. but allows a.c., Q. A capacitor blocks d.c. but a...

Q. A capacitor blocks d.c. but allows a.c. Why? Capacitive reactance   XC = 1/ω C        = 1 / 2πν C Where ν is the frequency of the a.c. supply. In a d.c. circuit

Which quantity is unchanged during refraction of light, Which quantity is u...

Which quantity is unchanged during refraction of light? Describe critical angle. Show an application of total internal reflection.

Volt meter, Ask question #Minimum 200 words accepted#

Ask question #Minimum 200 words accepted#

Distance of cosest approach, Why can''t an alpha particle touch the periph...

Why can''t an alpha particle touch the periphery of nucleus?

Rainstorm, why wouldn''t you be electrocuted if you walked under an electri...

why wouldn''t you be electrocuted if you walked under an electric transmission line during a rainstorm?

Constraint relation in pulley., kindly send me a detailed explanation of s...

kindly send me a detailed explanation of string constraint relation on pulley based problems....2 solve it do v take a reference point from wich v take d velocities and den v go wi

Resistances of resistance boxes, Are made up of alloys (manganin, constanta...

Are made up of alloys (manganin, constantan or nichrome) these materials have moderate Resistivity which is practically independent of temperature so that the specified value of re

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd