Find the effect focal length of a system of two thin convex lenses when they are separated by a finite distance d. Starting from left to right the lenses are L1 with f1 = 20 cm and L2 with f2 = 15 cm. The object distance is 30 cm in front of L 1

In the following three scenarios, an object is located on one side of a converging lens. In each case, you must determine if the lens forms an image of this object. If it does, you also must determine the following. whether the image is real or virtual whether the image is upright or inverted the image's location, q the image's magnification, M The focal length is  f = 60.0 cm  for this lens. Set both q and M to zero if no image exists. Note: If q appears to be infinite, the image does not exist (but nevertheless set q to 0 when entering your answers to that particular scenario). (a) The object lies at position 60.0 cm. (Enter the value for q in cm.) q= cmM= Select all that apply to part (a).  realvirtualuprightinvertedno image (b) The object lies at position 7.06 cm. (Enter the value for q in cm.) q= cmM= Select all that apply to part (b).  realvirtualuprightinvertedno image (c) The object lies at position 300 cm. (Enter the value for q in cm.) q= cmM= Select all that…

The figure shows an object and its image formed by a thin lens. Assume that d1 = 0.781 m, d2 = 0.604 m, and h = 7.50E-2 m. What is the image height (in m; answer sign and magnitude)?

The figure shows an object and its image formed by a thin lens. Assume that d1 = 0.595 m, d2 = 0.784 m, and h = 7.50E-2 m. What is the image height (in m; answer sign and magnitude)?