2. An object with a height of 12 mm is projected by an objective as a real image of 48 mm. The image plain is in a distance of 260 mm right from the object plain. Find the effective focal length of the objective, if the distance between its principle plains AHH = 10 mm.

An object is in front of a converging lens with a focal length of 14.0 cm. The image seen has a magnification of -2.00. (Include the sign of the values in your answers.) (a) How far is the object from the lens? cm (b) If the object has a height of -19.0 cm because it points below the principal axis (it is inverted), what is the image height h,? cm

What is the focal length of a magnifying glass that produces a magnification of 2.00 when held 8.00 cm from an object?  Express your answer in cm.

The focal length of a lens is 5.00 cm. How fare from the lens must the object be to produce an image 1.50 cm from the lens?

Calculate the magnification of an object placed 6.20 mm from a compound microscope that has a 6.00 mm focal lengthobjective and a 50.0 mm focal length eyepiece. The objective and eyepiece are separated by 23.0 cm.

The near point of a person's eye is 60.0 cm. What is the approximate power of the correcting lens that allows the person to clearly see objects placed 30.0 cm away? Neglect the eye-lens distance. O (A) -5.00 diopters O (B) -1.67 diopters C (C) +1.67 diopters O (D) +5.00 diopters Need Help? Read It

An object 1.50 cm high is held 3.20 on from a person's comes, and its reflected image is measured to be 0.160 cm h (a) What is the magnification? 0.111 (b) Where is the image (cm)? 0.355 x cm (from the comeal "mero (c) Find the radius of curvature (in cm) of the convex minor formed by the commea. (Note that this technique is used by optometrists to measure the curvature of the comes for contact lens ting. The instrument and is cabed a kemeta, or cune measurer.) 0.700 x on

2. A 5 cm high object is 12.0 cm in front of a system of two lenses, with f, = 10.0 cm and f2 = -15.0 cm. The lenses are separated by d = 20.0 cm. (a) How far is the final image FROM THE CONVEX LENS and (b) on which side is it formed and (c) what is the size of the final image? 12.Ocm

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Problem 10:  A simple compound microscope with an overall magnification of -550 has an objective that magnifies by -250. Part (a)  What is the magnification of the eyepiece? Part (b)  If there is another objective that can be used, having magnification of -400, what other total magnification is possible?