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Problem

. The focal length of a simple magnifier is 8.00 …

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Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 Problem 10 Problem 11 Problem 12 Problem 13 Problem 14 Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Problem 21 Problem 22 Problem 23 Problem 24 Problem 25 Problem 26 Problem 27 Problem 28 Problem 29 Problem 30 Problem 31 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 40 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46 Problem 47 Problem 48 Problem 49 Problem 50 Problem 51 Problem 52 Problem 53 Problem 54 Problem 55 Problem 56 Problem 57 Problem 58 Problem 59 Problem 60 Problem 61 Problem 62

Problem 30 Easy Difficulty

$\cdot$ A thin lens with a focal length of 6.00 $\mathrm{cm}$ is used as a sim-ple magnifier. (a) What angular magnification is obtainable with the lens if the object is at the focal point? (b) When an object is examined through the lens, how close can it be brought to the lens? Assume that the image viewed by the eye is at infinity and that the lens is very close to the eye.

Answer

a) 4.167
b) 6 $\mathrm{cm}$

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Video Transcript

Okay, so we're assuming that the image is at infinity. And so when that is the case, Ah, the angular magnification is equal to 25 centimeters over focal ing, and that is 25 over six. And so he have 4.17 And in part B, um, the object can be brought as close as the focal length, which is six centimeters. In other words, the focal point, and that's it.

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