If the power of a lens is - 4.0 d
WebThe convex lens is also called a converging lens. The focal length of a convex lens is positive. CALCULATION: Given that P = - 4 D Focal length (f) = 1/P = 1/ (-4) = - 1/4 = - … Web25 apr. 2014 · Let us say the lens prescribed has power equal to + 4.0 D. This means the lens prescribed is convex. The focal length of the lens is + 0.25 m. A lens of power – 0.5 D has a focal length of – 2 m. The lens is concave. Many optical instruments consist of a number of lenses. They are combined to increase the magnification and sharpness of …
If the power of a lens is - 4.0 d
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Web29 mrt. 2024 · If the power of a lens is - 4.0 D, then it means that the lens is a (A) concave lens of focal length -50 m (B) convex lens of focal length +50 cm (C) concave lens of focal length -25 cm (D) convex lens of focal length -25 m Answer - So, the correct answer is … WebQuestion : 21) The power of a lens 4.0 diopters. What the : 2040215. 21) The power of a lens is 4.0 diopters. What is the focal length of this lens? A) 25 cm. B) 55 cm. C) 40 cm. D) 20 cm. E) 60 cm. 22) The focal length of a lens is 5 m. What is the refractive power of this lens in diopters? A) 0.1 diopters. B) 0.2 diopters.
Web3 okt. 2024 · Given :- P= -4.0D To find :- Type of lens and focal length Solution :- According to the formula and optics the power of the lens is given as follows:- P = 1/f where P is … Web4 sep. 2024 · If the power of a lens is - 4.0 D, then it means that the lens is a * 1 point A. concave lens of focal length -50 m B. convex lens of focal length +50 cm C. concave …
WebSolution Verified by Toppr Given, lens of power P=(−2.0)D Power, P= f1 f= p1 = −21 f=−0.5 m Since focal length is negative, it is concave lens. Video Explanation Was this answer helpful? 0 0 Find All solutions for this book Science NCERT Page 186 Similar questions On reducing the focal length of a lens, its power: Easy View solution > Web23 okt. 2024 · Given: Power of lens in -4.0 D To find: Type of lens and its focal length Explanation: Power of lens (P)= -4 D Let focal length be denoted as f. The relation between power of lens and its focal length is: f (in m)= 1/P = 1/-4 = -0.25 m Converting -0.25 m into cm, we get the focal length as -25 cm since 1 m = 100 cm
Web20 okt. 2024 · If the power of a lens is - 4.0 D, then it means that the lens is a A. concave lens of focal length -50 m B. convex lens of focal length +50 cm C. concave lens of …
Web17 dec. 2024 · If the power of a lens is −4.0D, then it means that the lens concave lens of focal length −50 m convex lens of focal length +50 cm concave lens of focal length −25 cm− convex lens of focal length −25 m Viewed by: 5,864 students Updated on: Dec 17, 2024 1 student asked the same question on Filo Learn from their 1-to-1 discussion with Filo tutors. suzuki diskWebSolution If the power of a lens is -4.0 D, then it means that the lens is a concave lens of focal length -25cm. Explanation:- P = -4 D P = 100 f ( c m) f ( c m) = 100 P cm 100 - 4 = - 25 cm Negative focal length means concave lens. Concave lens of focal length -25cm. Concept: Concave Lens Report Error Is there an error in this question or solution? bar jargonWebIn order to understand optical specifications, it is important to first review what they mean. To simplify the ever-growing number, consider the most common manufacturing, surface, and material specifications for lenses, mirrors, and windows. Filters, polarizers, prisms, beamsplitters, gratings, and fiber optics also share many of these optical ... suzuki dirt bikes pricesWeb21 jun. 2024 · Explanation: It is given that, Power of the lens is -4 D. We know that the power of a lens is defined as the reciprocal of focal length. Focal length, f = -0.25 cm We know that the focal length of the concave lens is negative. So, the nature of this lens is concave. Learn more, Types of mirrors brainly.in/question/7036887 suzuki dj driveWeb3 sep. 2024 · If the power of a lens is - 4.0 D, then it means that the lens is a * 1 point A. concave lens of focal length -50 m B. convex lens of focal length +50 cm C. concave … suzuki discoveryWebSolution Verified by Toppr Given, power of the lens, P=+4D we know that, focal length (f)= P1=0.25 m Given, size of the object = size of the image For convex lens, this condition is possible only When the object is placed at the centre of curvature. ∴ Object distance = 2f=2×0.25 m=0.5 m or 50 cm Was this answer helpful? 0 0 Similar questions suzuki dirt bike racingWeb1 dec. 2024 · Click here 👆 to get an answer to your question ️ if the power of the lens is -4.0 d . then it means the lens is. abhishekchauras7976 abhishekchauras7976 02.12.2024 … suzuki distributor