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Find the optical power and the focal lengths (a) of a thin glass lens in liquid...
5. Show that the power of a system changes when it is reversed (by rotating it...
5. Show that the power of a system changes when it is reversed (by rotating it by 180o about an axis normal to its optical axis) unless the refractive indices of its object and image spaces are equal. Consider a thin lens of refractive index 1.5 and radii of curvature 10.0cm and -15.0cm with air in its object space and water in its image space. Calculate its focal lengths and power, then reverse the lens and repeat the calculations
13. A thin glass plate with the refractive index n has to surfaces which are not...
13. A thin glass plate with the refractive index n has to surfaces which are not exactly parallel. In the interference image obtained in the reflected light under nearly nor- mal incident angles the distance between the dark stripes is found to be Ar. The wavelength is . Find the angle a between the plate surfaces. (1p) 14. Total internal reflection is observed in glass (n=1.5) and in water (n=1.33) at identical incidence angles. In which case the penetration depth...
22. (i) A concave surface with a radius of 4 cm separates two media of refractive...
22. (i) A concave surface with a radius of 4 cm separates two media of refractive index n1 1.00 and n2- 1.5. Find the primary focal length and the secondary focal length. (ii) A biconvex glass lens has radii of curvatures 12 cm and 18 cm. The refractive index of glass is 1.44. Calculate the focal length of the lens. (iii) The radii of both surfaces of an equi-convex lens of refractive index 1.6 are equal to 8.0 cm. Find...
A certain thin lens is made of glass with refraction index ?lens=1.500. In air, where the...
A certain thin lens is made of glass with refraction index ?lens=1.500. In air, where the index of refraction is 1.000, the lens has focal length ?0=15.5 cm. What is the focal length ? of the lens when immersed in water, where the index of refraction is 1.330?
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5....
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5. Find the foca length of this lens if it is totally submerged into water of refractive index 1.33. A far sighted person cannot see objects clearly that are closer to the eye than 73 cm Determine the focal length of contact lenses that will enable this person to read a magazine at a distance of 25 cm. 4.
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air....
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air. What is its power in benzene (n = 1.501)?
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air....
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air. What is its power in benzene (n = 1.501)?
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air....
A crown glass lens (n = 1.52) has an optical power of 4.0 d in air. What is its power in methyl alcohol (n = 1.329)?
(optical engr) An optical imaging system includes two thin lenses. The first lens has focal lengt...
(optical engr) An optical imaging system includes two thin lenses. The first lens has focal lengths f1 = 5 cm and f2 = 10 cm. The distance between the 2 lenses is 5 cm. An object with height h = 2.5 cm is placed 15 cm before (to the left of) the first lens. A. Use the lens equations to compute final image location and image size of the object in this two lens optical imaging system B. Plot an...
A certain thin lens is made of glass with refraction index nlens = 1.500. In air,...
A certain thin lens is made of glass with refraction index nlens = 1.500. In air, where the index of refraction is 1.000, the lens has focal length f0 = 26.5 cm. What is the focal length f of the lens when immersed in oil, where the index of refraction is 1.460?
13. A thin glass plate with the refractive index n has to surfaces which are not exactly parallel. In the interference image obtained in the reflected light under nearly nor- mal incident angles the distance between the dark stripes is found to be Ar. The wavelength is . Find the angle a between the plate surfaces. (1p) 14. Total internal reflection is observed in glass (n=1.5) and in water (n=1.33) at identical incidence angles. In which case the penetration depth...
22. (i) A concave surface with a radius of 4 cm separates two media of refractive index n1 1.00 and n2- 1.5. Find the primary focal length and the secondary focal length. (ii) A biconvex glass lens has radii of curvatures 12 cm and 18 cm. The refractive index of glass is 1.44. Calculate the focal length of the lens. (iii) The radii of both surfaces of an equi-convex lens of refractive index 1.6 are equal to 8.0 cm. Find...
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5. Find the foca length of this lens if it is totally submerged into water of refractive index 1.33. A far sighted person cannot see objects clearly that are closer to the eye than 73 cm Determine the focal length of contact lenses that will enable this person to read a magazine at a distance of 25 cm. 4.
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