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(Duplicate) A wedge shaped air film having an angle of 40 seconds is illuminated by monochromatic light and fringes are observed vertically through a microscope.

The distance measured between consecutive bright fringes is 0.12 cm. calculate wavelength of light used.

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This question already has an answer, hence merged with: A wedge shaped film having angle of 40 seconds is illuminated by monochromatic light.


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