Answer #3) Spherical Mirror use ma unit of Dogter is rm unless stated Lesson: So

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Answer #3)

Spherical Mirror use ma unit of Dogter is rm unless stated Lesson: Sometimes, I use units of diopters. (Diverging, -1m 25cm) (Converging, 2 m 50cm) (Diverging, Pizza Pizza A spherical mirror (Concave, s placed 24cm to the right of an object 1. What is the focal length? 2. What is the radius of the mirror? 3. What is the image distance? 4. Where is the image? 5. Is the image real or virtual? 6. Is the image inverted or not inverted? 7. What is the magnification? 8. Is it enlarged or diminished? 9. Draw the ray diagram with 3 rays Spherical Mirror A spherical mirror (Convex, 6) is placed 24 cm to the right of an object 1. What is the focal length? Repeat 2. What is the radius of the mirror? for problem l 3. What is the image distance? raw mirror 4. Where is the image 5. Is the image real or virtual? Critical Angle 1.00). What 1.4) to air in Light moves from rebellium rebellium is the critical angle? What happens at this angle? What happens to light below this angle? What happens to light greater than this angle? 4) 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 1. Is it a concave or a convex lens? 2. What is the focal length (in cm) of the lens? 3. What is the value of o? (in cm) Is it to the left or right of the lens? 4. What is the value of m

Explanation / Answer

For any angle of incidence greater than the critical angle, light undergoes reflection into the same medium.If angle of incidence less than critical angle then the light enters other medium following snell's law.the critical angle is defined as the angle of incidence that provides an angle of refraction of 90-degrees.

sin(theta critical)=n2/n1

=1/1.4

so,theta critical=45.58 degrees.. :)

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