Two harmonic waves are described by $$y _ { 1 } = ( 5 \mathrm {~m} ) \sin \left( \frac { 6 } { \mathrm {~m} } x - \frac { 900 } { \mathrm {~s} } t \right)$$ $$y _ { 2 } = ( 5 \mathrm {~m} ) \sin \left( \frac { 6 } { m } x - \frac { 900 } { \mathrm {~s} } t - 2 \right)$$ What is the wavelength of the resultant wave?
A)3 m
B)2 m
C)1 m
D)4 m
E)6 m

Question

Quizplus · Accepted Answer

The Answer is C

Two Harmonic Waves Are Described By y1=(5 m)sin⁡(6 mx−900 st)y _ { 1 } = ( 5 \mathrm {~m} ) \sin \left( \frac { 6 } { \mathrm {~m} } x - \frac { 900 } { \mathrm {~s} } t \right)y1​=(5 m)sin( m6​x− s900​t)

Two Harmonic Waves Are Described By $y _ { 1 } = ( 5 \mathrm {~m} ) \sin \left( \frac { 6 } { \mathrm {~m} } x - \frac { 900 } { \mathrm {~s} } t \right)$