An Object 3 Cm High Is Located On The Principal Axis And 12cm From The Lens With A Focal Length Of -

An object 3 cm high is located on the principal axis and 12cm from the lens with a focal length of -6cm. Find (a) the position, and (b) the size of the image. (c) What type of lens is used?

 

Answer:

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Explanation:

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