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3.2 A concave lens has focal length of 20 cm. A 5 cm tall object be placed so that it forms an image at 15 cm from the lens. 3.2.1 Calculate at what distance from the lens must the object be placed. (3) 3.2.2 Calculate the size of the image formed. (4)

3.2 A concave lens has focal length of 20 cm. A 5 cm tall object be placed so that it forms an image at 15 cm from the lens. 3.2.1 Calculate at what distance from the lens must the object be placed. (3) 3.2.2 Calculate the size of the image formed. (4)

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3.2 A concave lens has focal length of 20 cm. A 5 cm tall object be placed so that it forms an image at 15 cm from the lens. 3.2.1 Calculate at what distance from the lens must the object be placed. (3) 3.2.2 Calculate the size of the image formed. (4)
Transcribed Image Text:3.2 A concave lens has focal length of 20 cm. A 5 cm tall object be placed so that it forms an image at 15 cm from the lens. 3.2.1 Calculate at what distance from the lens must the object be placed. (3) 3.2.2 Calculate the size of the image formed. (4)
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