A clerk at the local grocery store wears glasses that make her eyes look larger than they actually are. Is the clerk nearsighted or farsighted? Explain.
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A clerk at the local grocery store wears glasses that make her
eyes look larger than they actually are. Is the clerk nearsighted or
farsighted? Explain.
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- If you look into the bowl of a metal spoon, you see yourself up- side down. Flip the spoon so you're looking at the back side, and now you're right-side up. Explain.A clerk at the local grocery store wears glasses that make her eyes look smaller than they actually are. Is the clerk nearsighted or farsighted? Explain.If the cornea is to be reshaped (this can be done surgically or with contact lenses) to correct (short sight) myopia, should its curvature be made greater or smaller? Explain.
- Two lab partners, Mary and Paul are both farsighted. Mary has a near point of 67.8 cm from her eyes and Paul has a near point of 130 cm from his eyes. Both students wear glasses that correct their vision to a normal near point of 25.0 cm from their eyes, and both wear glasses 1.80 cm from their eyes. In the process of wrapping up their lab work and leaving for their next class, they get their glasses exchanged (Mary leaves with Paul's glasses and Paul leaves with Mary's glasses). When they get to their next class, find the following. (a) Determine the closest object that Mary can see clearly (relative to her eyes) while wearing Paul's glasses.Try splitting the problem into two steps. First, find the refractive power of each pair of glasses and then the closest object that each student can clearly view while wearing the other student's glasses. Think carefully about whether a particular object or image distance should be relative to the glasses or relative to the eyes. Give careful…Create a ray diagram for eyeglasses that contain a diverging lens. Assume you are looking at a 2 cm tall object that is 4 cm from the lens. The focal length is 3 cm. What type of vision are they used to correct? Give both names. How do they do this? Explain.Ch25,P20