A spherical silver Christmas tree ornament, 19 cm in diameter, acts as a mirror.

Question

A spherical silver Christmas tree ornament, 19 cm in diameter, acts as a mirror. (a) Are the images one sees in it real or virtual, upright or inverted? (Select all that apply.) real virtual upright inverted (b) Find the image height of a man 1.9 m tall, standing 3.3 m from the ornament. -5.58 m An object 2.3 cm high is placed 49 cm from a concave mirror of radius 12 cm and radius of curvature 61 cm. Find the location, size, and orientation of the image. location size orientation Find the location, size, and orientation of the image by drawing principal rays. (Do this on paper. Your instructor may ask you to turn in this work.)

Explanation / Answer

Allowed to answer only 1 question at a time According to the chegg guidelines.

1) Convex mirror forms virtul and upright images ===========PART A)

2) d = 19.0 cm R = d/2 = 9.50 cm f = R/2 = 9.50 cm / 2 = -4.75 cm (convex ) d =330 cm H =190 cm

1/f = 1/u + 1/v

v= -4.682598 cm

m = -v/u = 0.01418993

H = 2.96041822 cm ===================Part b)

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