Two light waves having the same wavelength lambdain vocume are in phaseinitially . Thenthe firstrayinitially . Thenthe first raytravels a pathof length L_(1)through a mediumof refractiveindex mu .The secondraytravels a pathof length L_(2)througha mediumof refractive index mu_(2) .The two waves are thencombined to observeinterferenceeffects . The phase difference betweenthe two , whenthey interfere is

Two light waves having the same wavelength lambdain vocume are in phas

1.	Two light waves having the same wavelength lambdain vocume are in phaseinitially . Thenthe firstrayinitially . Thenthe first raytravels a pathof length L_(1)through a mediumof refractiveindex mu .The secondraytravels a pathof length L_(2)througha mediumof refractive index mu_(2) .The two waves are thencombined to observeinterferenceeffects . The phase difference betweenthe two , whenthey interfere is
Answer» `(2pi)/LAMBDA (L_(1)-L_(2))` `(2pi)/lambda (mu_(1)L_(1) -mu_(1)L_(2))` `(2pi)/(lambda) (mu_(2) L_(1) -mu_(1)L_(2))` `(2pi)/lambda [(L_(1))/(mu_(1))-(L_(2))/(mu_(2))]` ANSWER :C

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