A camera fitted with a lens of focal length 50 mm is being used to photograph a flower that is 5 cm
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A camera fitted with a lens of focal length 50 mm is being used to photograph a flower that is 5 cm
217 просмотров · 3 месяца назад
2Pi classes
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217 просмотров · 3 месяца назад
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A camera fitted with a lens of focal length 50 mm is being used to photograph a flower that is 5 cm in diameter. The flower is placed 20 cm in front of the camera lens.
(a) At what distance from the film should the lens be adjusted to obtain a sharp image of the flower?
(b) What would be the diameter of the image of the flower on the film?
(c) What is the nature of camera lens?