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Nov 28

Solution: From the graph, when v = u, the coordinate of the point of intersection is given as (2f, 2f), where f is the focal length of the lens. The power of a lens is specified as P = \[\frac{1}{F}\], where f is the focal length. The focal length (f) of a converging lens is considered positive and that of a diverging lens is considered negative. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. P = f 1 Note: Convex lens has positive power and concave lens has negative power. This is also known as diopter. unit of power of a lens is \[m^{-1}\]. • If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Optical power. Performance & security by Cloudflare, Please complete the security check to access. • Figure shows a graph of v against u. Power of a lens is –40, its focal length is (a) 4 m (b) – 40 cm (c) – 0.25 m (d) – 25 m. Login. You may need to download version 2.0 now from the Chrome Web Store. Lens Equation Problems and Solutions. Remember. Diopter formula. Determine the focal length of the lens. Power of a Lens. Another way to prevent getting this page in the future is to use Privacy Pass. The shorter the focal length, the greater the power. It is a measure of the amount of deviation of light ray produced by a lens, more the power, more is the deviation. Your IP: 109.123.75.40 Unit of power is Dioptre (D). If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Power of lens calculation. Power of lens and its unit. The power for a convex lens is positive and the power for a concave lens is negative. Cloudflare Ray ID: 5f8f9b0bdee2dc27 2f = 30 … Power - definition Power of a lens is defined as the inverse of focal length (in meters) of the lens. The S.I.

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