The image formed by a concave mirror is inverted and located at a distance lal= 6 cm in front of it. What can you say about the nature of the image, and its size? O can not be determined O real image and magnified O virtual image and magnified O virtual image and reduced O real image and reduced
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- A converging lens of focal length 4 m produces a magnified image 2.4 times the size of the object. What is the object distance if the image is a) real? m b) virtual? mFor a thin lens situaiton, you have detemined the image distance is negative. Which of the following must be true? the image is real, it is on the opposite side as the object the image is virtual, it is on the same side as the object the image is real, it is on the same side as the object the image is virtual, it is on the opposite side as the object1) A piece of thin spherical shell that has a radius of curvature of 145 cm is silvered on both sides. The concave side of the piece forms a real image 500 cm from the mirror. The piece is then turned around so that its convex side faces the object. The piece is moved so that the image is now 30 cm from the piece on the concave side.
- The image is formed on the retina even when the distance of the object from the eye increases The lens of the eye becomes thinner and the focal length increases. O The lens of the eye becomes thicker and the focal length decreases. The lens of the eye becomes thinner, and the focal length decreases. с The lens of the eye is not affected and remains the same thickness. OxviConsider a converging lens whose focal length is 5.87 cm. An object is placed on the axis of the lens at a distance of 11.7 cm from the lens. How far is the object's image from the lens? image distance: cm If it can be determined, is the image real or virtual? real virtual cannot be determined If it can be determined, is the image upright or inverted with respect to the object? O upright cannot be determined O inverted
- A convex lens made of glass (n = 1.50) has a focal distance of 20 cm. An identical looking piece of plastic with same shape and thickness has a focal distance of 25 cm. Which of the following could be the index of refraction of the plastic? O 1.0 O 1.4 O 1.6 O 1.5w9-19 physics An object is placed 20.0 cm from a converging lens with focal length 15.0 cm (see the figure, not drawn to scale). A concave mirror with focal length 10.0 cm is located 76.0 cm to the right of the lens. Light goes through the lens, reflects from the mirror, and passes through the lens again, forming a final image. d=76.0 What is the location of the final image? ______cm to the left of the lensAim of the mirror experiment O find focal length of convex mirror find focal length of concave mirror O focal length of plane mirror concave mirror is * reflecting surface O transmitted surface diffracting surface