(a)Two narrow slits, s1 and s2 separated by 0.1 mm is illuminated by light of wavelength 600 nm. Determine the path difference of light waves from s1 and s2 at 5th dark spot above central maximum.

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3. (a)Two narrow slits, s1 and s2 separated by 0.1 mm isilluminated by light of wavelength 600
nm. Determine the path difference of light waves from s1 and s2 at 5th dark spot above central
maximum.
(b)soap bubble of refractive index 1.3 and thickness 400 nm is illuminated by white light (wave
length range 400-700 nm). Determine wavelengths of reflected light that undergoes
constructive interference.
Transcribed Image Text:3. (a)Two narrow slits, s1 and s2 separated by 0.1 mm isilluminated by light of wavelength 600 nm. Determine the path difference of light waves from s1 and s2 at 5th dark spot above central maximum. (b)soap bubble of refractive index 1.3 and thickness 400 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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