Physics

Problem

State the mathematical relation that connects phase difference

\phi

and path difference

\Delta x

for two coherent waves of wavelength

\lambda

. a)

\displaystyle \phi = \dfrac{\lambda}{2\pi}\,\Delta x

\displaystyle \phi = \dfrac{\pi}{\lambda}\,\Delta x

\displaystyle \phi = \dfrac{2\pi}{\lambda}\,\Delta x

\displaystyle \phi = \dfrac{\Delta x}{\lambda}