A telephoto lens—designed to produce large images of distant objects—sticks out quite far from the front of the camera. Explain why this is so.

st 8. A converging lens (f₁ = 12.0 cm) is located 27.3 cm to the left of a diverging lens (f₂ placed 32.4 cm to the left of the converging lens. Find the overall magnification. ssf60*³ f60 ssf ssf60 ssi f6 -6.6 cm). A postage stamp is sf60 ssf60 50 sst

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.

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.

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.

1. A patient enters an eye doctor’s office and finds the doctor tells him that his near point is 10.0 cm. The doctor also finds the patient’s far point (with eyes relaxed) is 125 cm. Each eye lens can be assumed to be 2.00 cm from the retina. a) Between what limits (units: diopters) does the power of this patient’s lens (technically lens+cornea combination) vary? b) The doctor is going to prescribe glasses. Calculate the power of the eyeglass lens the patient should use for relaxed distance vision. Is the lens converging or diverging?

You need to use a 23- cm -focal-length lens to produce an inverted image one third the height of an object. At what distance from the object should the lens be placed? Express your answer with the appropriate units.

You are a marine biologist and want to pull a star fish out of a tank of water for testing. Looking from the top of the tank, where is the actual starfish compared to the image of the starfish that you see from the surface? Explain.