A convex lens of power 5 D and a concave lens of power 7.5 D are placed in contact with each other. What is the :(a) power of this combination of lenses?(b) focal length of this combination of lenses?

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A convex lens of power 5 D and a concave lens of power 7.5 D are placed in contact with each other. What is the: (a) Power of this combination of lenses? (b) Focal length of this combination of lenses ?

The simplest focal length definition is a description of the distance between the center of a lens and the image sensor when the lens is focused at infinity.

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Multifocal optical lenses collect the infrared energy within detected area and excludes false alarms caused by direct or reflected sunlight hit or car ...

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(c) A combination of lenses for a camera contains two converging lenses of focal lengths 20 cm and 40 cm and a diverging lens of focal length 50 cm. Find the power and focal length of the combination.

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Lighting controllers. Selecting the right lighting controller offers various benefits for your machine vision setup. It leads to improved ...

machine controller ... Definitions: A control system/motion network that electronically synchronizes drives within a machine system instead of relying on ...

The working distance of a microscope is the distance between the objective lens and the specimen when the specimen is in focus. This distance can vary ...

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