image size in a mirror mastering physics

When the object moves closer to the eye, the image produced by the lens will be farther behind the lens therefore, the lens must move farther from the retina. The lens must move closer to the retina-that is, farther away from the object-to compensate for the object moving closer to the eye. (a) If an object moves closer to an octopus, must the octopus move its lens closer to or farther from its retina to keep the object in focus? (b) Choose the best explanation from among the following: This changes the distance from the lens to the retina and brings an object into focus. Instead, an octopus moves its rigid lens back and forth, as in a camera.

CEPredict/Explain BIO Octopus Eyes To focus its eyes, an octopus does not change the shape of its lens, as is the case in humans.

Thus a person with condition is said to be nearsighted because objects near the eye can be focused, where as objects beyond the far point are fuzzy. In a nearsighted person, however, a totally relaxed eye focuses only out to a finite distance from the eye- the far point.

When a person with normal vision relaxes the cilliary muscles of the eye.

Why is it restful to your eyes to gaze off into the distance? Mastering Physics Solutions Chapter 27 Optical Instruments

Image size in a mirror mastering physics