Question:1 A double-slit test is completed using mild of wavelength 600 nm. If the distance among the slits is 0.1 mm and the distance to the screen is 2 m, calculate the distance among the first and 2nd vivid fringes. Question: 2 Calculate the angular width of the significant maximum in the unmarried-slit diffraction pattern for light of wavelength 500 nm passing through a slit of width zero.05 mm. Question: 3 A Michelson interferometer is used to measure the wavelength of mild. If the distance between the mirrors is 50 cm and 20 fringes are observed when one mirror is moved, what's the wavelength of light? Question:4 Calculate the minimum thickness of a soap movie for which positive interference happens in the reflected mild for monochromatic mild of wavelength 600 nm and refractive index 1.33.