White light is passed through a double slit and interference pattern is observed on a screen 2:5 m away. The separation between the slits is 0'5 mm. The first violet and red fringes are formed 20 mm and 3:5 mm away from the central white fringe. Calculate the wavelengths of the violet and the red light.
White light is passed through a double slit and interference pattern is observed on a screen 2:5 m away. The separation between the slits is 0'5 mm. The first violet and red fringes are formed 20 mm and 3:5 mm away from the central white fringe. Calculate the wavelengths of the violet and the red light.
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