Problem 18.36 Constanis Part A A 4 ?cr-tall object is 15 cm in front of a convex

Question

Problem 18.36 Constanis Part A A 4 ?cr-tall object is 15 cm in front of a convex mirror that has a-30 cm focal length. , Calculate the image position. Input positive value if the image is on the same side from the mirror as an object and negative if the image is on the other side. Express your answer using two significant figures. Submit Part B Calculate the image height Input positive value if the image is upright and a negative value if it is inverted. Express your answer using two significant figures. h- Submit Reguest Answer

Explanation / Answer

from the mirror equation

1/f = 1/u + 1/v

1/-30 = 1/15 + 1/v

1/v = 1/-30- 1/15

v = -9.99 cm

image is behind the mirror

from the magnification eqution

m = hi/ho = -v/u

hi = ho ( -v/u)

= 4.0 cm ( - ( -9.99/15)

=2.66 cm

m is positive so upright

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