Please show math
A convex lens 50 cm away from an object creates an inverted image twice the size of the original object. What is the focal length of the lens?
2.0 cm
150 cm
33 cm
50 cm
17 cm
Please show math A convex lens 50 cm away from an object creates an inverted image...
A convex (converging) lens produces a real, inverted image of an object that is magnified 2.30 times when the object is 25.0 cm from the lens. What is the focal length of the lens?
A convex (converging) lens produces a real, inverted image of an object that is magnified 2.20 times when the object is 23.0 cm from the lens. What is the focal length of the lens?
QUESTION 7 An object placed 35 cm in front of a convex lens projects a real image 55 cm behind the lens. What is the magnification of the lens? Enter only the number portion of your answer. Watch your signs! (9) An object 21 cm to the left of a convex lens. The object is 1.0 m in height. What is the height of its image if the lens has a magnification of -2.0? (10) An object 21 cm to...
5. The image distance of a convex lens for an object 3.0 f away from the lens (where f is the focal length) is a) 1.5 f b) 2.0 f c) 2.5 f d) 3.0f e) 4.5 f
2) A diverging lens is placed 20. cm away from an object, 80. cm from the diverging lens is a converging lens whose focal length is 25 cm. 35. cm from the converging lens is a screen showing an image of the object. a) What is the focal length of the diverging lens? f = 25. cm o *20. cm → 80. cm + 35 cm → b) What type of image is it? Circle one Real or Virtual c)...
1.A convex (converging) lens produces a real, inverted image of an object that is magnified 2.80 times when the object is 43.0 cm from the lens. What is the focal length of the lens? 2. The closest distance a book can be read from a pair of reading eyeglasses (Power = 1.63 dp) is 29.0 cm. What is the near distance?(Assume a distance between the eyeglasses and the eyes to be 2.50 cm)
Please answer all questions: 1. An f=7.95 cm convex lens produces an inverted image of a 1.6 m tall person. If the lens must be 5.04 m from the person to produce a sharp image, what is the magnitude of the magnification (no - sign!)? 2. You put a convex lens with f=21.4 cm right next to a concave lens with f=-19.3 cm. The two lenses combined act like one single lens. What is the effective focal length of this...
A convex lens has its focal length f= 44.8 cm. (a) Where will it focus the object, which is 2.0 m away from the lens? (b) What will be the size of the object's image if the size of the object is 1.5 cm?
8. An object is placed 1 m in front of a convex lens with an 80 cm focal length. A convex mirror is then placed 1 m behind the lens. The radius of curvature of the mirror is 50 cm. 1. Where is the final image of the object (the image formed by light that has passed through the lens twice), with respect to the lens? 2. What is the total magnification of the final image? 3. Is the image...
An object placed 20 cm in front of a lens results in an image being formed 24 cm behind the lens. Each surface of the lens is convex (bulging away from the optical plane) with the same radius of curvature, and the index of refraction of the glass composing the lens is Tiens =1.4. What is the radius of curvature of either side of this lens (to the nearest tenth of a cm)? Note, once again, the focal length of...