In the figure below, a candle is placed 50 cm away from a concave mirror, whose
ID: 1493356 • Letter: I
Question
In the figure below, a candle is placed 50 cm away from a concave mirror, whose focal length is 20 cm. The diverging lens has a focal length magnitude of 35 cm and is 65 cm to the right of the candle. An observer to the right of the lens views the candle by looking through the lens. You should be able to convince yourself that this observer sees two images of the candle. For each of these two images, provide answers to the following: Sketch a principal ray diagram or diagrams showing approximately where the image is located. Where is the image? Is the image real or virtual? Is the image erect or inverted with respect to the original object?Explanation / Answer
For first image
1/v = 1/20 - 1/50
=> v = 33.33 cm
=> image location is 33.33 cm right to the mirror .
=> image is real .
=> image is inverted with respect to original object .
For second image
1/v = 1/35 - 1/65
=> v = 75.83 cm
=> image location is 75.83 cm left to the lens .
=> image is virtual .
=> image is erect with respect to original object .