# 2. (a) Using table data presented in the text, calculate the focusing power Fmin of the crystallinelens in the case when eye is focused to view distant objects. (b) Knowing that focusing power of thecornea is Feornea = 42 D, calculate minimum focusing power of the eye. (c) Find what if the eyefocal length in this case. Eye optical system1. Optical power of the cornea:Fornea = F, + F =F- optical power of the cornea front surface, D; F- optical power of the cornea back surface, D; R,radius of curvature of the comea front surface, m;Clary fibersR.Vous humorComeaLene- radius of curvature of the comea back surface,R,Foram; n1 - ambient refraction index (for air n = 1 andfor water n, = 1.33); n - cornea refraction index:n- aqueous humour refraction index.2. Optical power of the erystalline lens:Ferystalline tens =F +F, = s-aE- optical power of the crystalline lens frontsurface, D; F, - optical power of the crystalline lens back surface, D; R - radius of curvature ofthe crystalline lens front surface, m; R, - radius of curvature of the crystalline lens back surface, m;n - aqueous humour refraction index; n, - crystalline lens refraction index; n; - vitreous humorOplo nerveAgueoushumorRenaScerarefraction index.Table - Parameters for the EyeRadius, mmIndex ofrefractionFrontBackR = 7.8Ramar =10Ramin =6Aqueous humour and vitreous humorR, = 7.3R4maz =6Ramie =5.5Cornean, =1.38n4 =1.4Crystalline lens (Fmin)Crystalline lens (Fmar)=1.333. Optical power of eye:F= Farnaa + Feristalline lens4. Lens equation:1 1. 1CorneaLensS- lens focal length (m); F- lens optical power (D); p- distance from the object to the lens or object distance(m); g – distance from the image to the lens or imagedistance (m).5. Height of image on the retina:h.9Н ЕH - height of image on the retina, m; h - height of object, m; q - image distance (for human eye onthe average is equal to 1.5 cm), m; p - distance of the object to optical system of the eye, m.6. Lens magnification:нH- image height (m); h - object height (m), p - object distance (m); g - image distance (m).7. Law of refraction:nisine, = nzsinez

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Can you use the formula in the second picture to answer it, please?

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Focusing power of crystalline lens

(a) Minimum focusing power of crystalline lens

When focused at distant object the radius if curvature of the crystalline lens is maximum.

(b) Minimum focusing power of the eye

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