VITEEE 2016 Paper

Section: Physics

Question : 35 of 125

Marks: +1, -0

When a plastic thin film of refractive index 1.45 is placed in the path of one of the interfering waves then the central fringe is displaced through width of five fringes. The thickness of the film, if the wavelength of light is 5890 Å, will be

6.544 X 10−4 cm
6.544 x 10−4 m
6.54 x 10−4 cm
6.5 x 10−4 cm

Validate

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