Light of wavelength 690 nm passes through two slits which are separated by 0.6 mm. The screen is 1.5 m away. A second source of unknown wavelength produces light and dark fringes which are 1.13 mm closer together than the 690 nm light. What is the wavelength of the unknown light?
Light of wavelength 690 nm passes through two slits which are separated by 0.6 mm. The screen is 1.5 m away. A second source of unknown wavelength produces light and dark fringes which are 1.13 mm closer together than the 690 nm light. What is the wavelength of the unknown light?
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Transcribed Image Text:(c) Light of wavelength 690 nm passes through two slits which are separated
by 0.6 mm. The screen is 1.5 m away. A second source of unknown
wavelength produces light and dark fringes which are 1.13 mm closer
together than the 690 nm light. What is the wavelength of the unknown
light?
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