5) An image is formed 15 cm behind a 10-cm-focal-length converging lens. Find the object distance a) using a ray diagram, b) by calculation.
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5) An image is formed 15 cm behind a 10-cm-focal-length converging lens. Find the object distance a) using a ray diagram, b) by calculation.
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- can someone help me with this physics problemThe near point of a person's eye is 72.8 cm. (Neglect the distance from the lens to the eye.) (a) To see objects clearly at a distance of 24.0 cm, what should be the focal length of the appropriate corrective lens? cm (b) To see objects clearly at a distance of 24.0 cm, what should be the power of the appropriate corrective lens? dioptersVARIANT 23 Suppose an object such as a book page is held 15 cm from a concave lens of focal length - 10.0 cm. Such a lens could be used in eyeglasses to correct pronounced nearsightedness. (a) Using the thin lens equations to calculate the location of the image. (b) What magnification is produced? (c) Use ray tracing to get an approximate location for the image.
- 15. An object is placed 70.0 cm in front of a lens whose focal length is +23.0 cm. The image that is formed of this object will be: a) inverted and 2.04 times the size of the object. b) inverted and 0.489 times the size of the object. c) erect and 2.04 times the size of the object. d) erect and has the same size as the object. e) erect and 0.489 times the size of the object.6) An object is placed very far in front of a converging lens of focal length 13.2 cm. Find the location of the image, be sure to indicate which side of the lens the image is on.The near point of a person's eye is 72.0 cm. (Neglect the distance from the lens to the eye.) (a) To see objects clearly at a distance of 26.0 cm, what should be the focal length of the appropriate corrective lens? cm(b) To see objects clearly at a distance of 26.0 cm, what should be the power of the appropriate corrective lens? diopters
- a) If the focal length of a converging lens is 2.0 meters and an object is placed 10 meters away, how faraway is the image of the object from the lens?b) Draw a ray-trace diagram for a converging lens.7) Both lenses of a compound microscope have focal lengths of 1 cm. The barrel length is 26.95 cm. Deteimine the total magnification for an object placed 1.04 cn below the objective,A) How far from a 59.0- mm -focal-length lens must an object be placed if its image is to be magnified 3.50× and be real? B)
- a) Find an equation for the length L of a refracting telescope in terms of the focal length of the objective fo and the magnification m. L = (b) A knob adjusts the eyepiece forward and backward. Suppose the telescope is in focus with an eyepiece giving a magnification of 20.3. By what distance must the eyepiece be adjusted when the eyepiece is replaced, with a resulting magnification of 1.0 ✕ 102? Must the eyepiece be adjusted backward or forward? Assume the objective lens has a focal length of 2.32 m. (Use a positive value if the eyepiece must be moved forward toward the objective lens and negative values if the eyepiece must be moved backwards.) cmNeeds Complete typed solution with 100 % accuracy.An object is placed 66 cm in front of a converging lens of focal length 9 cm. Another converging lens of focal length 14 cm is placed 26 cm behind the first lens. a) Find the position of the final image with respect to the second lens. cm b) Find the magnification of the final image.