1)Consider the depicted lens. If the lens has an index of refraction of 1.52 and is...
1)Consider the depicted lens. If the lens has an index of
refraction of 1.52 and is located in air, what kind of lens is
it?
a) Converging
b) Diverging
c) Neither converging nor diverging.
d) Need additional information.
2)If the lens is immersed in a liquid with an index of refraction
of 1.5, what kind of lens is it?
a)Converging
b)Diverging
c)Neither converging nor diverging.
d)Need additional information.
3)You want to take a macro photo of an ugly bug at magnification
1:3, i.e., the image on the film is supposed to be one third the
size as the original. Your lens has a focal length f. How
far from the lens should the bug be placed?
a)f
b)2f
c)3f
d)4f
e)5f
f) 6f
4) A camera uses a lens with 24 mm focal length. You take a photo of grandpa Sam (height 1.7 m), who stands 16 meters away. What is the height of his image on the film?
Homework Answers
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1)Consider the depicted lens. If the lens has an index of
refraction of 1.52 and is...
A thin plastic lens with index of refraction n = 1.71 has radii of curvature given...
A thin plastic lens with index of refraction n = 1.71 has radii of curvature given by Ri = -11.5 cm and R2 = 35.0 cm. HINT (a) Determine the focal length in cm of the lens. cm (b) Determine whether the lens is converging or diverging. converging ОО diverging Determine the image distances in cm for object distances of infinity, 7.00 cm, and 70.0 cm. (c) infinity cm (d) 7.00 cm cm (e) 70.0 cm cm
A thin plastic lens with index of refraction n = 1.66 has radii of curvature given...
A thin plastic lens with index of refraction n = 1.66 has radii of curvature given by R, - -11.5 cm and R- 35.0 cm. HINT (a) Determine the focal length in cm of the lens. cm (b) Determine whether the lens is converging or diverging. O converging O diverging Determine the image distances in cm for object distances of infinity, 3.00 cm, and 30.0 cm. (c) Infinity cm (d) 3.00 cm cm (e) 30.0 cm cm Need Help? Read...
18. A thin lens made of glass with the index of refraction versus wavelength as shown...
18. A thin lens made of glass with the index of refraction versus wavelength as shown in the figure. It has a focal length of magnitude 10.0 cm for green light. You shine a second laser light on the lens and find that the focal length now has a magnitude less than 10.0 cm. What color 1.545 could be the second laser? a. red b. blue c. also green d. It depends on whether the lens is converging or diverging...
2. A sphere of glass with index of refraction n 1.7 and radius 5 cm has...
2. A sphere of glass with index of refraction n 1.7 and radius 5 cm has been cut, as shown below, to make a thin lens. The focal length of this lens is (the sign indicates converging or diverging, as usual, closest answer in cm) (a) -1.2 (b) 1.2 (c) -5.3 (d) 5.3 (e) -7.1 (f) 7.1
A typical human lens has an index of refraction of 1.430. The lens has a double...
A typical human lens has an index of refraction of 1.430. The lens has a double convex shape, but its curvature can be varied by the ciliary muscles acting around its rim. At minimum power, the radius of the front of the lens is 10.0 mm, whereas that of the back is 6.00 mm. At maximum power, the radii are 6.50 mm and 5.50 mm, respectively. If the lens were in air, what would be the maximum power and associated...
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?
The index of refraction of a substance is 2. What is the speed of light in...
The index of refraction of a substance is 2. What is the speed of light in the substance? Question 8 An object is placed 9.7 cm to the left of a diverging lens with a focal length of -9.1 cm. How far is the image from the lens? distance = ст
A typical human lens has an index of refraction of 1.430. The lens has a double...
A typical human lens has an index of refraction of 1.430. The lens has a double convex shape, but its curvature can be varied by the ciliary muscles acting around its rim. At minimum power, the radius of the front of the lens is 10.0 mm, whereas that of the back is 6.00 mm. At maximum power, the radii are 6.50mm and 5.5mm, respectively. If the lens were in air: What would be the maximum power and associated focal length...
A lens produces a real image of a real object. a) Is the image inverted or upright? b) Is the lens diverging or conver...
A lens produces a real image of a real object. a) Is the image inverted or upright? b) Is the lens diverging or converging? c) Is the image enlarged or reduced in size? d) If two convex lenses identical in size and shape aremanufactured from glass with two different indices of refraction,would the focal length of the lens with the greater index ofrefraction (lens 1) be larger or smaller than that of the otherlens (lens 2)?
Problem 1. A concave-convex lens with index of refraction n = 3/2, radii of curvature R1...
Problem 1. A concave-convex lens with index of refraction n = 3/2, radii of curvature R1 = ?3cm and R2 = 1cm is 4cm to the left of a diverging lens having focal length ?2cm. An object is placed to the left of both lenses at a distance 7 cm from the concave-convex lens. (a) Where is the final image formed by this combination of lenses? (b) Is the final image upright or inverted? (c) Is the final image real...
A thin plastic lens with index of refraction n = 1.71 has radii of curvature given by Ri = -11.5 cm and R2 = 35.0 cm. HINT (a) Determine the focal length in cm of the lens. cm (b) Determine whether the lens is converging or diverging. converging ОО diverging Determine the image distances in cm for object distances of infinity, 7.00 cm, and 70.0 cm. (c) infinity cm (d) 7.00 cm cm (e) 70.0 cm cm
A thin plastic lens with index of refraction n = 1.66 has radii of curvature given by R, - -11.5 cm and R- 35.0 cm. HINT (a) Determine the focal length in cm of the lens. cm (b) Determine whether the lens is converging or diverging. O converging O diverging Determine the image distances in cm for object distances of infinity, 3.00 cm, and 30.0 cm. (c) Infinity cm (d) 3.00 cm cm (e) 30.0 cm cm Need Help? Read...
18. A thin lens made of glass with the index of refraction versus wavelength as shown in the figure. It has a focal length of magnitude 10.0 cm for green light. You shine a second laser light on the lens and find that the focal length now has a magnitude less than 10.0 cm. What color 1.545 could be the second laser? a. red b. blue c. also green d. It depends on whether the lens is converging or diverging...
2. A sphere of glass with index of refraction n 1.7 and radius 5 cm has been cut, as shown below, to make a thin lens. The focal length of this lens is (the sign indicates converging or diverging, as usual, closest answer in cm) (a) -1.2 (b) 1.2 (c) -5.3 (d) 5.3 (e) -7.1 (f) 7.1
A typical human lens has an index of refraction of 1.430. The lens has a double convex shape, but its curvature can be varied by the ciliary muscles acting around its rim. At minimum power, the radius of the front of the lens is 10.0 mm, whereas that of the back is 6.00 mm. At maximum power, the radii are 6.50 mm and 5.50 mm, respectively. If the lens were in air, what would be the maximum power and associated...
The index of refraction of a substance is 2. What is the speed of light in the substance? Question 8 An object is placed 9.7 cm to the left of a diverging lens with a focal length of -9.1 cm. How far is the image from the lens? distance = ст
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