A 2.1-cm-tall candle flame is 2.3 m from a wall. You happen to havea lens with focal length of 37 cm.   For each position, what is the height and orientation of the image? h1 and h2

Spherical Mirrors: An object is placed 50 cm in front of a concave mirror with a focal length of 25 cm. What is the magnification produced by the mirror? +1.0 +1.5 O-1.0 -2.0 -0.50

A lens has a focal length of f = +30.0cm . An object is placed at 40.0cm from the lens. a. Is the lens converging or diverging? b. What is the image distance? (Include the + or – sign.) c. What is the magnification? (Include the + or – sign.) d. Is the image real or virtual? e. Is the image upright or inverted?

Shown in the figure below is a system containing two lenses and an object. The focal lengths of the two lenses are f₁ = 17 cm and f₂ = -8.5 cm. The two lengths indicated in the figure are L₁ = 25.5 cm and L2 = 13.6 cm. 41 f1 L₂ f2 Determine all the following about the image from the first lens only: Object distance for the first lens, do1. Image distance for the first lens, di1. cm cm Magnification of the first lens, m1. The second lens uses the image from the first lens as its object. Determine all the following about the image from the second lens: Object distance for the second lens, do1. Image distance for the second lens, di1. cm cm Magnification of the second lens, m₁. Determine the magnification of the whole system, mtot Select the correct attributes of the final image of the system: O real ○ virtual enlarged O shrunk O right side up O upside down NOTE: Throughout the problem be careful with the sign of every quantity.