Question

Problem 1. A small candle that is 4.00 cm tall is placed 18.0 cm in front of a makeup mirror having a focal length of 20.0 cm. (a) In the REPRESENT step, use ray tracing to find the position and height of the image. (b) In the DEVELOP and EVALUATE steps develop a plan and then calculate the image position (in cm) and height (in cm). To assess your answer, compare your values with your ray-tracing answers in part (a).

Answer 1

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ho=4cm, u=18cm, f= 20cm, Make-up mirror is concave Mirror using Mirror's formula Ś + $ - 5 = 5 + 18-20 = 180 cm. Image distance Magnification (m) = -Y = hi > - (18) = hi hi = 40 cm. Amwer of image 140cm, v=180cm. Magnified, virtual Image.