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21 Oct 2018
6) [8 pts] You are studying by candelight with a friend. The candle is 2.4 m from a wall, and when your friend puts her glasses down on a pile of books at the same height as the candle, you notice an image of the candle on the wall formed by the lens of the glasses. Intrigued, you move the glasses and find a second point to place the eyeglasses where an image is created on the wall. The friend's glasses have a focal length of f=28.0 cm. a. Find the two positions of the lens which will lead to images on the wall. b. Find the magnifications of the two images. Are they upright or inverted? c. Are the images real or virtual? d. Is your friend near-sighted or far-sighted? Two positions give image candle wall
6) [8 pts] You are studying by candelight with a friend. The candle is 2.4 m from a wall, and when your friend puts her glasses down on a pile of books at the same height as the candle, you notice an image of the candle on the wall formed by the lens of the glasses. Intrigued, you move the glasses and find a second point to place the eyeglasses where an image is created on the wall. The friend's glasses have a focal length of f=28.0 cm. a. Find the two positions of the lens which will lead to images on the wall. b. Find the magnifications of the two images. Are they upright or inverted? c. Are the images real or virtual? d. Is your friend near-sighted or far-sighted? Two positions give image candle wall
Nelly StrackeLv2
22 Oct 2018
