Coating eyeglass lenses . Eyeglass lenses can be coated on the inner surfaces to reduce the reflection of stray light to the eye. If the lenses are medium flint glass of refractive index 1.62 and the coating is fluorite of refractive index 1.432. (a) what minimum thickness of film is needed on the lenses to cancel light of wavelength 550 nm reflected toward the eye at normal incidence, and (b) will any other wavelengths of visible light be cancelled or enhanced in the reflected light?
Coating eyeglass lenses . Eyeglass lenses can be coated on the inner surfaces to reduce the reflection of stray light to the eye. If the lenses are medium flint glass of refractive index 1.62 and the coating is fluorite of refractive index 1.432. (a) what minimum thickness of film is needed on the lenses to cancel light of wavelength 550 nm reflected toward the eye at normal incidence, and (b) will any other wavelengths of visible light be cancelled or enhanced in the reflected light?
Coating eyeglass lenses. Eyeglass lenses can be coated on the inner surfaces to reduce the reflection of stray light to the eye. If the lenses are medium flint glass of refractive index 1.62 and the coating is fluorite of refractive index 1.432. (a) what minimum thickness of film is needed on the lenses to cancel light of wavelength 550 nm reflected toward the eye at normal incidence, and (b) will any other wavelengths of visible light be cancelled or enhanced in the reflected light?
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The position of a particle is described by r = (300e 0.5t) mm and 0 = (0.3t²) rad,
where t is in seconds.
Part A
Determine the magnitude of the particle's velocity at the instant t = 1.5 s.
Express your answer to three significant figures and include the appropriate units.
v =
Value
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Part B
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Units
Determine the magnitude of the particle's acceleration at the instant t = 1.5 s.
Express your answer to three significant figures and include the appropriate units.
a =
Value
A
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Units
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Diffraction of light animation best to understand class 12 physics; Author: PTAS: Physics Tomorrow Ambition School;https://www.youtube.com/watch?v=aYkd_xSvaxE;License: Standard YouTube License, CC-BY