(c) Find the number of reflections of light rays for each of these images first

Question

(c) Find the number of reflections of light rays for each of these images first nearest image second nearest image 0 ColFunPhys1 24.P015 A spherical silver Christmas tree ornament, 18 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 2 3 m tall standing 3.2 m from the ornament. 3.34/10 points |Previous Answers ColFunPhys1 24 Po19 An object 2.2 cm high is placed 48 cm from a concave mirror of radius 11 cm and radius of curva tur location 67 cm. Fi 312e

Explanation / Answer

a)

Here mirror is convex ,so it forms Vitrual and upright images

b)

For Convex mirror

f=-D/4 =-18/4 =-4.5 cm

From Thin formula

1/f =1/di +1/do

-1/0.045=1/di +1/3.2

di=-4.4376 cm

Since Magnification

M=-di/do =hi/ho

hi=-(-4.4376/320) *230

hi=3.19 cm

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