WebA convex meniscus lens is made of glass with refractive index, n= 1.5. The radius of curvature of the concave surface is 46.2 cm and the radius of curvature of the convex surface is 22.4 cm. a)Calculate the focal length of the lens. b)Determine the position. An object is placed 20.0 cm to the left of a convex lens with a focal length of +8.0 cm ... WebSep 12, 2024 · Convex lens - along with sign convention v = +ve, f = +ve, u = -ve 1/f = 1/v + 1/u ... I am little confused while using sign convention for focal length of lenses . Let say focal length is 6 cm, …
Physics coursework; Finding the focal length of a lens using a ...
WebA simple way to do this would be, to hold the lens up to a flat white wall opposite a window when it is light outside, by moving the lens closer/ further away from the wall until an … WebThe owner of a van installs a rear-window lens that has a focal length of -0.310 m. When the owner looks out through the lens at an object located directly behind the van, the object appears to be 0.220 m from the back of the van, and appears to be 0.380 m tall. (a) How far from the van is the object actually located, and (b) how tall is the ... list of greek weapons
Determination of focal length of a concave mirror and convex lens
For a thick lens (one which has a non-negligible thickness), or an imaging system consisting of several lenses or mirrors (e.g. a photographic lens or a telescope), there are several related concepts that are referred to as focal lengths: Effective focal length (EFL) The effective focal length, also sometimes called e… WebApr 14, 2024 · A converging beam of rays is incident on a diverging lens. Having passed through the lens the rays intersect at a point $15\,cm$ from the lens on the opposite side. … WebJan 19, 2024 · What sign (+ve or -ve) is given to the focal length of: (a) a concave mirror?, and (b) a convex mirror? ... Focal length of a convex mirror is +ve. ... List the sign … imanage software reviews