Webto find focal length of a plane mirror first we need to apply a general formula. that is. 1/f = 1/u + 1/v. ( u = object distance and v = image distance ) as in plane mirror image is … WebNov 4, 2024 · The focal length of a mirror and a lens can be calculated using 1/do + 1/di = 1/f, where do is the object distance, di is the image distance, and f is the focal length. Register to view this...
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WebMar 25, 2024 · Focal length is half of Radius of curvature, f = R/2 = 6/2 = 3 m Using mirror formula 1 / v + 1 / u = 1 / f 1 / v + 1 / -8 = 1 / 3 1 / v = 1 / 3 + 1 / 8 = 11 / 24 v = 24 / 11 m The image is formed at distance of 24 / 11 behind the mirror. Problem 7: A concave mirror produces an image of size n times that of the object and of focal length f. WebDec 23, 2024 · My Parks 4" Jovian Mak is 1200 focal length, yet it's about 11 inches long. 11 x 3 is 33 but 1200 is 48 inches. So... If the light takes three paths in the scope, why is the focal length not three times the length of the tube? Must be something about the mirrors. Back to Cats & Casses · Next Unread Topic → Cloudy Nights → Equipment Discussions how much is krispy kreme coffee
Solve Problems on Mirror and Magnification Formula
WebThe focal length of the mirror is simply the distance between and . As is easily demonstrated, in the paraxial approximation, the focal length of a convex mirror is half of its radius of curvature. Figure 74: The virtual focus of a convex mirror. There are, again, two alternative methods of locating the image formed by a convex mirror. WebThe outside mirror on the passenger side of a car is convex and has a focal length of -6.0 m. Relative to this mirror, a truck traveling in the rear has an object distance of 11 m. Find (a) the image distance and (b) the magnification of the mirror. (a) Number i (b) Number i Units Units Question WebNov 20, 2024 · We use the magnification formula for a mirror to calculate the magnification or image size of an object. It is the following simple expression: m = - \frac {v} {u} m = −uv , where m m is linear magnification. Notice there is a minus sign which results from the … how do i back up my itunes to icloud