Draw a ray diagram and determine the nature and focal length of a spherical lens which forms three times magnified real image of an object placed 16 cm from the lens.

Draw a ray diagram and determine the nature and focal length of a sphe

1.	Draw a ray diagram and determine the nature and focal length of a spherical lens which forms three times magnified real image of an object placed 16 cm from the lens.
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Draw a ray diagram and determine the nature and focal length of a spherical lens which forms three times magnified real image of an object placed 16 cm from the lens.

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