- #1

CianM

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## Homework Statement

Three light waves combine at a point where their electric field components are

E

_{1}= E

_{o}[tex] sin \omega[/tex]t

E

_{2}= E

_{o}[tex] sin (\omega[/tex]t - 2[tex]\pi[/tex]/3)

E

_{3}= E

_{o}[tex] sin (\omega[/tex]t + [tex]\pi[/tex]/3)

Find the resultant amplitude of the electric field E

_{R}at that point and it's phase angle[tex]\beta[/tex]

Write the resultant wav int the form

**E**= E

_{R}[tex] sin(\omega[/tex]t + [tex]\beta[/tex])

## Homework Equations

## The Attempt at a Solution

Am I right in assuming that first you add E

_{1}+E

_{2}then add E

_{12}+ E

_{3}using double angle formulas? Or am I going about this completely the wrong way?