achromatic lens

a compound lens system that forms an image free from chromatic aberration

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	An object is placed in front of a converging lens in such a position that the lens f 14.0 cm creates a real image located 27.0 cm from the lens Then with the object remaining in place the lens? Read answer...
	What kind of lens causes rays of light incident on a lens and parallel to the principal axis of the lens to converge? Read answer...
	If you have a 28mm lens a 50mm lens and a 150mm lens which one should you use to take a photo of a huge herd of elephant How about take picture of a pencil on the desk and make it bigger Why? Read answer...

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	What is an achromatic lens and what is its relation to power and dispersive power?
	The focal length of a thin converging lens is 10cm. What is the maximum distance from the lens that can be placed so that the lens acts as a magnifying glass?
	An object placed 50cm from a lens produces a vritual image at a distance of 10cm in front of the lens calculate the focal length of the lens?

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