8. An object of height, ho a +2 cm, is locatddrawing +16 cm. The objet is shown

Question

8. An object of height, ho a +2 cm, is locatddrawing +16 cm. The objet is shown in the radius of curvature of R +12 cm, in front of a concave mirror, which has bated at, d h. (6 pt) (do last) Add standard 3 ray trace to given drawing. especially the location of the focal point, F, the center of curvature, C, & the location of the image. (Vertical scale may differ from horizontal scale.) Add additional details &labels; as needed, a. (1 pt) Determine f. b. (1 pt) Determine d c. (1 pt) Is the image real or virtual? d. (1 pt) Determine M. e. (1 pt) Determine h. f. (I pt) Is the image is inverted or upright? & (1 pt) Is the image is magnified, unchanged, or reduced?

Explanation / Answer

A) f = R/2 = 8cm

B)mirror equation is 1/u -1/v = 1/f

1/(-12) - 1/v =-1/8

gives v = -24

C)real image since it can be caught on a screen.

D)M = v/u= -24/(-12) = 2

E)himage =magnification x hobject = 2 x 2 = 4cm.

F)The image is inverted

G)the image is magnified by 2 times.

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