Two lenses are placed along the x axis, with a diverging lens of focal length -9.00 cm on the left and a converging lens of focal length 17.0 cm on the right. When an object is placed 16.0 cm to the left of the diverging lens, what should the separations of the two lenses be if the final image is to be focused at x = ∞? cm

A converging lens has a focal length of 15 cm. An object is located 40 cm from the lens. (a) What is the location of the image formed by the lens?   n=cv c=3.00 x 108 m/s    1f=1do+1di     M=−dido  M=hiho

A 1.00-cm-high object is placed 3.35 cm to the left of a converging lens of focal length 8.65 cm. A diverging lens of focal length −16.00 cm is 6.00 cm to the right of the converging lens. Find the position and height of the final image. position      cm      height      cm

A convex thin lens with refractive index of 1.50 has a focal length of 30 cm in air . When immersed in a certain transparent liquid , it becomes a negative lens with a focal length of 188 cm . Determine the refractive index of the liquid .

A meniscus lens is made of glass of nL = 1.6 . It has a convex front surface of |R1| = 25 cm and a concave second surface of |R2| = 75 cm. Calculate the focal length of the lens in air; give your answer in cm to 1 d.p.

Hello, I am having trouble with this physics homework. Two converging lenses with focal lengths 20 and 10 cm are placed 20 cm apart. An object is placed 30 cm left of the lens with a focal length of 20 cm. Determine the distance to final image from lens with focal length 20 cm

A 2.0 cm tall object is 30 cm to the left of a lens with a focal length of 10 cm. A second lens with a focal length of -5 cm is 30 cm to the right of the first lens. Find the location, and size, of the final image relative to the original object, and the character of the final image. Draw (two) ray diagrams to verify the result.

An object is 19 cm in front of a diverging lens that has a focal length of -13 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 2.3? Number -18.98 Units cm

Buttercup is using a compound microscope with an objective lens focal length of 6.2mm and a tube length of 18.2cm. She rotates the knob to adjust the vertical position of the specimen plateform until she gets the image in focus. What is the distance between the slide and the objective lens in millimeters at this point? 188.2 mm

A double-convex thin lens has surfaces with equal radii of curvature of magnitude 2.50 cm. Using this lens, you observe that it forms an image of a very distant tree at a distance of 1.87 cm from the lens. What is the index of refraction of the lens?