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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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.
Transcribed Image Text: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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