The equation of a light, wave is written as λ = A sin (kx - ω t). Here, y represents

Question

Philoid · Accepted Answer

Light is an electromagnetic wave which does not require a medium to travel. Hence, y represents the electric field associated with the wave. As light does not require a medium, y cannot represent displacement of particles, or pressure, density variations.

The equation of a light, wave is written as λ = A sin (kx - ωt). Here, y represents