An object is placed in front of a convex mirror. Draw the convexmirror (radius of curvature=15 cm) to scale, and place the object 25 cmin front of it. Make the object height 4 cm. Using a ray diagram, locatethe image and measure its height. Now move the object closer to themirror, so the object distance is 5 cm. Again, locate its image using a raydiagram. As the object moves closer to the mirror, (a) does the magnitudeof the image distance become larger or smaller, and (b) does the magnitude of the image height become larger or smaller? (c) What is the ratioof the image height when the object distance is 5 cm to its height whenthe object distance is 25 cm? Give your answer to one signifi cant figure.
An object is placed in front of a convex mirror. Draw the convex
mirror (radius of curvature=15 cm) to scale, and place the object 25 cm
in front of it. Make the object height 4 cm. Using a ray diagram, locate
the image and measure its height. Now move the object closer to the
mirror, so the object distance is 5 cm. Again, locate its image using a ray
diagram. As the object moves closer to the mirror, (a) does the magnitude
of the image distance become larger or smaller, and (b) does the magnitude of the image height become larger or smaller? (c) What is the ratio
of the image height when the object distance is 5 cm to its height when
the object distance is 25 cm? Give your answer to one signifi cant figure.
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