An object of height 5.50 cm is placed 30.0 cm to the left of a converging lens with a focal length of 12.0 cm. Determine the image location in cm, the magnification, and the image height in cm. (a) the image location in cm (b) the magnification (c) the image height in cm

A transparent photographic slide is placed in front of a converging lens with a focal length of 2.53 cm. An image of the slide is formed 12.0 cm from the slide. (a) How far is the lens from the slide if the image is real? (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.) cm cm (b) How far is the lens from the slide if the image is virtual? (Enter your answers from smallest to largest starting with the first answer blank. Enter NONE in any remaining answer blanks.) cm cm Need Help? Master It

A camera is equipped with a lens with a focal length of 22 cm. When an object 1.8 m (180 cm) away is being photographed, how far from the film should the lens be placed? cm

An optician is designing a contact lens. The material has is an index of refraction of 1.45. In order to yield the prescribed focal length, the optician specifies the following dimensions: inner radius of curvature = +2.60 cm outer radius of curvature = +1.98 cm where the inner radius of curvature describes the surface that touches the eye, and the outer radius of curvature describes the surface that first interacts with incoming light. What is the focal length of this contact lens (in cm)?