The image obtained with a convex lens is erect arid. Its length is four times the length of the object. If the focal length of the lens is 20 cm
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The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall 3 m away by means of a large convex lens. What is the maximum possible focal length of the lens required for the purpose?
09
Sep
The image of a small electric bulb fixed on the wall of a room is to be obtained on the opposite wall 3 m away by means of a large convex lens. What is the maximum possible focal length of the lens required for the purpose? calculate the object and image distance. The image obtained [...]
The image obtained with a convex lens is erect arid. Its length is four times the length of the object. If the focal length of the lens is 20 cm, calculate the object and image distance.
09
Sep
The image obtained with a convex lens is erect arid. Its length is four times the length of the object. If the focal length of the lens is 20 cm, calculate the object and image distance. calculate the object and image distance. The image obtained with a convex lens is erect arid. Its length is [...]