he figure shows an object and its image formed by a thin lens. Assume that d1 = 0.391 m, d2 = 0.609 m, and h = 7.50E-2 m. What is the focal length of the lens (in m; answer sign and magnitude)? give answer in 3 sig figs and scientiific notation

An object placed 15 cm to the left a convex lens produces and image 31 cm on right side of the lens. What is the focal length of this lens? Only numerical answer required. No need for units.

Work with your neighbors to fill in the table below. If a number has (+) written in front of it, then you must determine if the number should be positive or negative. mirror type concave focal radius of length curv. (+)20 cm +20 cm -40 cm object image magnifi- distance distance cation +10 cm +10 cm +30 cm -10 cm 1.0 real or virtual? inverted. or not?

find the distance of the image (d.) and height of the jmage (h), using the following data. Focai length = 8 cm, Distance of object = 24 cm, Height of the object = 4 cm

A doctor examines a mole with a 15.5 cm focal length magnifying glass held 11.0 cm from the mole. (a) Where is the image? (Enter the image distance in meters. Include the sign of the value in your answer.) (b) What is its magnification? (c) How big in millimeters is the image of a 5.20 mm diameter mole? mm

d, d; In the picture above, you know the distance from the lens to the object, d, = 7cm, and the distance from the mirror to the image, d; %3D = 4.6cm. The position of the focal point must be at i cm. (Record your answer to two decimal places.)

A microscopic specimen has an actual size of 329.43 um(diameter), when the image is printed and measured using a ruler, its dianeter has a size of 34 cm. What is the actual magnification?

A shiny sphere, 30 cm in diameter, is placed in a garden for aesthetic purposes.   Calculate the image distance dII of a 6.00-cm-tall squirrel located 46 cm in front of the sphere. Follow the sign convention. (Express your answer to two significant figures.)

The kitten, Simba (Fig. A) and the kitten, Bella (Fig. B) are inspecting a goldfish swimming inside a round aquarium filled with water (nwater = 1.33). The magnitude of the radius of the round surface of the aquarium is 16 cm. The kittens are in air (nair=1.00). In order to calculate the apparent depth of the fish as viewed by the kittens, you need to use the equation shown in Fig. C. Identify the following (Please note that I am not asking you to do the calculation) n₁ P Fig. A + n₂ 9 = (n₂-n₁) R Fig. C Fig. A: n₁ = Fig. B: n₁ = ; n₂ = _; n₂ = Fig. B ; R = ; R =

One positive lens (focal length = f1) and one negative lens (focal length = -f2) are placed at a distance d. – All lenses are thin lenses. Find the overall ABCD matrix of the system Find the value of d when “C” of the overall matrix is zero. ( Hint : Find d in terms of f1 and f2) (This is when the focal length of the overall system is infinity.)