8-6 (1 try) You go to an aquarium where you have the chance to swim with a 1pt n

Question

8-6 (1 try) You go to an aquarium where you have the chance to swim with a 1pt narwhal. You want to make sure that you will be able to see them clearly. In air you have a near point of 2 ft. What will be your near point if you enter the water without goggles? A. Less than 2 feet away B. Still 2 feet away. C. More than two feet away. (2 tries) What happened to the power of the lens that is attached to the front of the model eye in the lab when water was poured into the model eye? 8-7 2pto A. The power stayed the same. B. Th C. e power went up because the back of the lens is flat. The power went up because the back of the lens is convex. The power went up because the back of the lens is com D. cave. E. The power went down because the back of the lens is flat. The power went down because the back of the lens is convex. The power went down because the back of the lens is concave. F. G.

Explanation / Answer

As the water's refractive index is more than air and comparable to the cornea, the RI at the front surface of the cornea is much less in this situation. Hence the near point will be more than 2 feet away

Answer - C  

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