Do number 2) Spherical Mirror Lesson: Sometimes, I use units of diopters. (Diver

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Do number 2)

Spherical Mirror Lesson: Sometimes, I use units of diopters. (Diverging, 4 -1/4m = -25cm) (Converging, 2 1/2m = 50cm) (Diverging, Pizza = A spherical mirror (Concave, 8) is placed 24cm to the right of an object. What is the focal length? What is the radius of the mirror? What is the image distance? Where is the image? Is the image real or virtual? Is the image inverted or not inverted? What is the magnification? Is it enlarged or diminished? Draw the ray diagram with 3 rays. Spherical Mirror A spherical mirror (Convex, 6) is placed 24cm to the right of an object. What is the focal length? What is the radius of the mirror? What is the image distance? Where is the image? Is the image real or virtual? Critical Angle Light moves from rebellium (nrebellium = 1-4) to air (nair = 1.00). What is the critical angle? What happens at this angle? What happens to light below this angle? What happens to light greater than this angle? The Unknown Lens You have a lens. Your image is real, 25cm away from the lens, enlarged by a factor of 2.5 and is inverted. Is it a concave or a convex lens? What is the focal length (in cm) of the lens? What is the value of o? (in cm) Is it to the left or right of the lens? What is the value of m?

Explanation / Answer

Focal length = 1 /6 m = 100 / 6 cm = 16.67 cm

Radius = 2f = 2 X 16.67 = 33.33 cm

(1/v) - (1 / 24) = 3 / 50

Solving this we get v = 9.84 cm

Image distance = 9.84 cm

Image is formed on the other side of the object

Image formed is virtual

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