Question

Chapter 25, Problem 16 Your answer is partially correct. Try again. Concept Simulation 25.2 illustrates the concepts pertinent to this problem. A 2.80-cm-high object is situated 14.5 cm in front of a concave mirror that has a radius of curvature of 14.8 cm. Calculate (a) the location and (b) the height of the image (a) Numberi74 (b) Number-2.40 Units cm Units cm

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Answer #1

here,

the height of object , ho = 2.8 cm

the object distance , d0 = 14.5 cm

the radius of curvature , r = 14.8 cm

focal length , f = r/2

f = 7.4 cm

a)

let the image distance be di

using the mirror formula

1/f = 1/di + 1/do

1/7.4 = 1/di + 1/14.5

di = 15.1 cm

b)

the height of image , hi = ho * ( -di/do)

hi = 2.8 * ( - 15.1 /14.5) cm

hi = - 2.92 cm

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