Thanks
You hold a magnifying glass up to a flower. The magnifying glass has a focal length...
To see a flower better, you hold a 6.0-cm-focal-length magnifying glass 4.0 cm from the flower. What is the magnification?
When a person holds a magnifying glass 8.0 cm away from an object that is 2.0 cm wide, she sees a virtual image of the object, which is 6.0 cm wide. What is the focal length of the magnifying glass? Provide a drawing using the ray tracing rules.
A doctor examines a mole with a 15.6 cm focal length magnifying glass held 11.7 cm from the mole. (a) How far is the image from the lens? Can you write the thin lens equation which gives a relationship between the focal length of a lens, the object distance, and the image distance? If the image distance is negative, what can you conclude about the image? cm Is the image real or virtual? realvirtual (b) What is its magnification? (c)...
A magnifying glass is a single convex lens with a focal length of ff = 13.0 cm . What is the angular magnification when this lens forms a (virtual) image at the person's near point (assumed to be 25 cm)? M =
Can someone help me on this practice physics exam? 9. A magnifying glass has a convex lens of focal length 15 cm. (a) Draw the ray diagram that shows an object being magnified by this lens. (b) At what distance from a postage stamp should you hold this lens to get a magnification of +2?
A stamp collector observed his favorite stamp with a magnifying glass with a focal length of 24.0 cm. The image of the stamp was located at his near point distance of 30.0 cm. What was the approximate angular magnification of the magnifying glass when the collector observed his stamp?
A doctor examines a mole with a 16.8 cm focal length magnifying glass held 11.1 cm from the mole. (a) How far is the image from the lens? cm Is the image real or virtual? real virtual b) What is its magnification? (c) How big is the image of a 5.00 mm diameter mole? mm
A doctor examines a mole with a 17.4 cm focal length magnifying glass held 11.7 cm from the mole. (a) How far is the image from the lens? -0.36 хст Is the image real or virtual? real virtual (b) What is its magnification? (c) How big is the image of a 5.00 mm diameter mole? mm
A 20 cm tall object is located 70 cm away from a diverging lens that has a focal length of 20 cm. Use a scaled ray tracing to answer parts a-d. a. Is the image real or virtual? b. Is the image upright or inverted? c. How far from the lens is the image? d. What is the height of the image? e. Now use the thin lens equation to calculate the image distance and the magnification equation to determine...
A doctor examines a mole with a 16.5 cm focal length magnifying glass held 11.4 cm from the mole. (a) How far is the image from the lens? -0.37 x cm Is the image real or virtual? Oreal virtual (b) What is its magnification? 10 (c) How big is the image of a 5.00 mm diameter mole? 50 X mm