If R denotes the reaction of the body to some stimulus of strength, the sensitivity is defined
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source is increased, the eye reacts by decreasing the area R of the pupil. The experimental formula has been used to model the dependence of R on when R is measured in square millimeters and is measured in appropriate units of brightness.
(a) Find the sensitivity.
(b) Illustrate part (a) by graphing both R and S as functions of x. Comment on the values of R and S at low levels of brightness. Is this what you would expect?
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40 + 24x04 I+ 4x04
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a S b dR dr 40 0 40 4x4 96x6 4024x4 16x06 1 420 4 02 06 06 96x 3842 64x 1 ...View the full answer
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