3. (a)Two narrow slits, si and s2 separated by 0.2 mm is illuminated by light of wavelength 400 nm. Determine the path difference of light waves from s1 and s2 at 4th dark spot above central maximum . (b)soap bubble of refractive index 1.3 and thickness 300 nm is illuminated by white light (wave length range 400-700 nm). Determine wavelengths of reflected light that undergoes constructive interference.
3. (a)Two narrow slits, si and s2 separated by 0.2 mm is illuminated by light of wavelength 400 nm. Determine the path difference of light waves from s1 and s2 at 4th dark spot above central maximum . (b)soap bubble of refractive index 1.3 and thickness 300 nm is illuminated by white light (wave length range 400-700 nm). Determine wavelengths of reflected light that undergoes constructive interference.
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Transcribed Image Text:3. (a)Two narrow slits, s and s2 separated by 0.2 mm is illuminated by light of
wavelength 400 nm. Determine the path difference of light waves from sı
and s2 at 4th dark spot above central maximum .
(b)soap bubble of refractive index 1.3 and thickness 300 nm is illuminated
by white light (wave length range 400-700 nm). Determine wavelengths of
reflected light that undergoes constructive interference.
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