Two sources of light 0.6 ~mm apart and screen is placed at a distance of 1.2 ~m from them. A light of wavelength 6000 Å used. Then the phase difference between the two light waves interfering on the screen at a point at a distance 3 ~mm fro

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Two sources of light 0.6 ~mm apart and screen is placed at a distance of 1.2 ~m from them. A light of wavelength 6000 Å used. Then the phase difference between the two light waves interfering on the screen at a point at a distance 3 ~mm from central bright band is

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Correct answer: D. 5 radian

Fringe width, W= . D d = 6000 10⁻¹⁰ 1.2 0.6 10⁻³ =1.2 ~mm Number of fringes (n) = 3 1.2 =2.5 Phase difference, =2 n =2 2.5 =5

Two sources of light 0.6 ~mm apart and screen is placed at a distance of 1.2 ~m from them. A light of wavelength 6000 Å used. Then the phase difference between the two light waves interfering on the screen at a point at a distance 3 ~mm from central bright band is

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