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Pin Hole (0) 1m 0.3m 2m бт *not to scale

Pin Hole (0) 1m 0.3m 2m бт *not to scale

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Pin Hole (0) 1m 0.3m бт 2m *not to scale
Transcribed Image Text:Pin Hole (0) 1m 0.3m бт 2m *not to scale
By what factor is the quokka magnified? Answer:
Transcribed Image Text:By what factor is the quokka magnified? Answer:
Expert Solution
Step 1

For blue line 

Let vertical distance on wall is a 

Now, 

By symmetric triangle 

a/(6+2) = 1/2 

a = 4 m 

Let from top point level of object distance of red line on wall is b 

By symmetry 

b/(6+2) = (1-.3)/2 

b = 2.8 m 

Now, height of image hi = a - (b+.3) 

hi = 4 - (2.8+.3)

hi = 0.9 m 

So, factor = hi / ho = 0.9/0.3 

= 3

 

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