an object is placed at distance of 40 cm in concave lens with focal length of 20 cm write the characteristics and where the image is formed??
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image is real and irect and umage is formed at csame size
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Concave lens characteristics
diverge parallel rays away from a focal point, have negative focal lengths, and form only virtual, smaller images.converge parallel rays to a focal point, have positive focal lengths, and form images with similar characteristics. 20 cm
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