Problems: Support each answer with detailed reasoning for full credit. Do NOT re

Question

Problems: Support each answer with detailed reasoning for full credit. Do NOT regurgitate memorized results from problems worked in the text or recitation. Any answers NOT recorded on the Scantron answer page will NOT be counted A mirror has an object distance of 40 cm and an image distance of I1 cm? 17. What is the focal length of the mirror? A) 4.315 cm B) 6.500 cm C) 8.627 cm D) 9.499 cm E) 11.79 cm F)40.00 cm 18. What kind of mirror is it? A) converging B) diverging 19. What is the image? A)real B) virtual

Explanation / Answer

17. Mirror formula :

1/V +1/U = 1/f

V: image distance U : object distance

f: focal length

1/(11) + 1/40 = 1/f

f= 8.627 cm

option c is correct.

18. Mirror is diverging mirror

19. Image is real

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