State the conditions necessary for interference to take place. In a Young's 2-slit experiment, the separation of the interference bands w is given by the equation: w=?D/a where λ is the wavelength of the light, D is the distance from the double slit to the screen and a is the distance between the slits. Given that D = 5 m, a= o.25 cm and λ = 618 nm, calculate the fringe width w. Give your answer in millimetres.
State the conditions necessary for interference to take place. In a Young's 2-slit experiment, the separation of the interference bands w is given by the equation: w=?D/a where λ is the wavelength of the light, D is the distance from the double slit to the screen and a is the distance between the slits. Given that D = 5 m, a= o.25 cm and λ = 618 nm, calculate the fringe width w. Give your answer in millimetres.
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State the conditions necessary for interference to take place. In a Young's 2-slit experiment, the separation of the interference bands w is given by the equation: w=?D/a
where λ is the wavelength of the light, D is the distance from the double slit to the screen and a is the distance between the slits. Given that D = 5 m, a= o.25 cm and λ = 618 nm, calculate the fringe width w. Give your answer in millimetres.
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