When the curvature radius is greater, then the cross on the horizontal line (focal point) is?...
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When the curvature radius is greater, then the cross on the
horizontal line (focal point) is?...
5. What was the focal distance (f) when the radius of curvature was 0.8 and index...
5. What was the focal distance (f) when the radius of curvature was 0.8 and index of refraction was 1.6? 6. Calculate the radius of curvature of a lens with a focal distance of 40.0 cm and an index of 1.2. 7. An object placed 3cm away from a lens projects a real image 0.6m behind the lens. What is this lens focal distance? 8. What is the lens magnification? 9. An object 20.0 cm to the left of a...
Make the curvature radius 0.6 , the refractive index 1.5, and the diameter 0.6 . Place...
Make the curvature radius 0.6 , the refractive index 1.5, and the diameter 0.6 . Place the lamp so that the source of light is 120 from the middle of the lens (use the ruler).The focal length of the lens is ____________, and the focal plane is ___________ from the lens. 120 cm / 120 cm 60 cm / 120 cm 60 cm / 60 cm 30 cm / 120 cm 60 cm / 180 cm For this lens, when the object is 120 cm away,...
o Consider a thin double concave lens, with each face having a radius of curvature of...
o Consider a thin double concave lens, with each face having a radius of curvature of 35 cm. The glass composing the lens has an index of refraction of 1.4 1.What is the focal length of this lens? 2.If an 1 cm object is placed at 1.5x the focal length, where is the image and how big is it, according to the thin lens equation? 3.Is the image real or virtual? Right side up? Hint: when sketching your ray diagram,...
CHAPTER 24 GEOMETRIC OPTICS As an object moves from just inside the focal point of a...
CHAPTER 24 GEOMETRIC OPTICS As an object moves from just inside the focal point of a sonverzing lens to just gutside it, he image goes from andto and A. large; inverted, large; upright. B. large; upright; large; inverted. C. small: inverted; small; upright. D. small: upright; small; inverted. 7. 8. When the reflection of an object is seen in a concave mirror, the image is A. Virtual and erected. B. Real and inverted. C. Virtual and inverted. D. Real and...
Consider a thin lens, but with different radius of curvature, denoted as R1, R2. The refractive index of the lens is n....
Consider a thin lens, but with different radius of curvature, denoted as R1, R2. The refractive index of the lens is n. (1) Derive analytically, when a monochromatic plane wave is shined normally on the lens. What would the transmitted complex wave function be? From the derived complex wave function, what is the focal length in terms of R1, R2, n? (2) Take R1 50cm, R2 35cm, n 1.5. If we place an object with height of 4cm in front...
Questions +62 mm Lens Does a strong lens (high power) have a long or short focal...
Questions +62 mm Lens Does a strong lens (high power) have a long or short focal length? What are the power and focal length of a thin, flat piece of glass with no curvature? Look carefully at the +62 mm and +400 mm lenses. Which lens has the greater curvature? 1. 120 mim Lens 2. To correct hypermetropia, is it necessary to move the image formed by the eye closer to or farther from the eye's lens system? Does this...
28) As you move an object from just outside to just inside the focal point...
28) As you move an object from just outside to just inside the focal point of a converging lens, its image, A) goes from real to virtual and from inverted to erect. B) goes from inverted to erect, but remains real. C) goes from inverted to erect, but remains virtual. D) goes from real to virtual, but remains inverted. 29) A certain thin lens has a focal length f. If you double both its radii of curvature, but...
Below is one final diagram, this time with the object at the focal Point. Draw the...
Below is one final diagram, this time with the object at the focal Point. Draw the ray diagram for this case. Note: you will only be able two of the three principal rays. Does it appear that the rays that have passed through the lens diverge from some point? If so, where? If not, why not? Predict what you will se when look back thru lens towards the object? While your head is far from the lens, look back thru...
A converging lens and a converging mirror have the same focal length in air. Part A...
A converging lens and a converging mirror have the same focal length in air. Part A Which one has a longer focal length if they are used underwater? Construct the correct explanation. Drag the terms on the left to the appropriate blanks on the right to complete the sentences. In the case of the mirror, the convergence of light rays is achieved through BLANK, which BLANK on the indices of refraction. For the lens, however, convergence is achieved through BLANK,...
Concave Mirrors "Take first an object in the region between the mirror and focal point. The...
Concave Mirrors "Take first an object in the region between the mirror and focal point. The nearer the object is to the focal point, the weaker the intensity of light will be, but the larger the image will be. The farther away the object is from the focal point (closer to the mirror), the stronger the intensity of light will be, but the smaller the image will be. In both cases the image will be upright." a. verify these statements...
5. What was the focal distance (f) when the radius of curvature was 0.8 and index of refraction was 1.6? 6. Calculate the radius of curvature of a lens with a focal distance of 40.0 cm and an index of 1.2. 7. An object placed 3cm away from a lens projects a real image 0.6m behind the lens. What is this lens focal distance? 8. What is the lens magnification? 9. An object 20.0 cm to the left of a...
o Consider a thin double concave lens, with each face having a radius of curvature of 35 cm. The glass composing the lens has an index of refraction of 1.4 1.What is the focal length of this lens? 2.If an 1 cm object is placed at 1.5x the focal length, where is the image and how big is it, according to the thin lens equation? 3.Is the image real or virtual? Right side up? Hint: when sketching your ray diagram,...
CHAPTER 24 GEOMETRIC OPTICS As an object moves from just inside the focal point of a sonverzing lens to just gutside it, he image goes from andto and A. large; inverted, large; upright. B. large; upright; large; inverted. C. small: inverted; small; upright. D. small: upright; small; inverted. 7. 8. When the reflection of an object is seen in a concave mirror, the image is A. Virtual and erected. B. Real and inverted. C. Virtual and inverted. D. Real and...
Consider a thin lens, but with different radius of curvature, denoted as R1, R2. The refractive index of the lens is n. (1) Derive analytically, when a monochromatic plane wave is shined normally on the lens. What would the transmitted complex wave function be? From the derived complex wave function, what is the focal length in terms of R1, R2, n? (2) Take R1 50cm, R2 35cm, n 1.5. If we place an object with height of 4cm in front...
Questions +62 mm Lens Does a strong lens (high power) have a long or short focal length? What are the power and focal length of a thin, flat piece of glass with no curvature? Look carefully at the +62 mm and +400 mm lenses. Which lens has the greater curvature? 1. 120 mim Lens 2. To correct hypermetropia, is it necessary to move the image formed by the eye closer to or farther from the eye's lens system? Does this...
Below is one final diagram, this time with the object at the focal Point. Draw the ray diagram for this case. Note: you will only be able two of the three principal rays. Does it appear that the rays that have passed through the lens diverge from some point? If so, where? If not, why not? Predict what you will se when look back thru lens towards the object? While your head is far from the lens, look back thru...
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