1. An object is located 90 cm in front of a converging lens (f = 60 cm). Determine where the image is located.

2. A camera is supplied with two interchangeable lenses, whose focal lengths are 26.0 and 110.0 mm. A woman whose height is 1.59 m stands 6.30 m in front of the camera. What is the height (including sign) of her image on the image sensor, as produced by (a) the 26.0-mm lens and (b) the 110.0-mm lens?

a.

b.

3. When a diverging lens is held14.0cm above a line of print, as in Figure below, the image is3.9cm beneath the lens. (a) Is the image real or virtual? (b) What is the focal length of the lens?

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