We know that the lens formula
1/f = 1/di + 1/do
1/22 = 1/di + 1/33
1/di = 1/22 -1/33 = 1/66
di = 66 mm............Ans. of a)
Magnification = di/do = 66/33 = 2.0 ........Ans. of (b)
8 A camera lens used for taking close-up photographs has a focal length of 22.0 mm....
A camera lens used for taking close-up photographs has a focal length of 20.5 mm. The farthest it can be placed from the film is 31.0 mm. (a) What is the closest object that can be photographed? (b) What is the magnification of this closest object?
A lens used for taking close up pictures has a focal length of 22 mm. The farthest it can be placed from the film is 31.5 mm. Question) What is the closest object that can be photographed in cm?
A concave lens has a focal length of -36 cm. Find the image distance and magnification that results when an object is placed 19 cm in front of the lens. (Use the proper sign convention for both quantities.) When an object is located 61 cm to the left of a lens, the image is formed 25 cm to the right of the lens. What is the focal length of the lens? An object with a height of 2.22 cm is...
(8%) Problem 11: A camera with a 50.0 mm focal length lens is being used to photograph a person standing 3.75 m away. A 50% Part (a) How far, in centimeters, must the film be from the lens? 50% Part (b) If the film is s = 36.0 mm high, what percent of the width of the film will a 135 m tall person take up? Wel/s (%) =
A camera is equipped with a lens with a focal length of 24 cm. When an object 2.6 m (260 cm) away is being photographed, how far from the film should the lens be placed? cm
A camera is equipped with a lens with a focal length of 22 cm. When an object 1.9 m (190 cm) away is being photographed, how far from the film should the lens be placed? ________cm
A macro lens is designed to take very close-range photographs of small objects such as insects and flowers. At its closest focusing distance, a certain macro lens has a focal length of 42.0 mm and forms an image on the photosensors of the camera that is 1.29 times the size of the object. 1) How close must the object be to the lens to achieve this maximum image size? (Express your answer to three significant figures.) 2) What is the...
(25%) Problem 4: A camera that has a 50.0 mm focal length lens is being used to photograph a person standing 3.25 m away. A50% Part (a) How far, in centimeters, must the film be from the lens? d;= 1 A 50% Part (b) If the film is s = 36.0 mm high, what percent of the width of the film will a 1.6 m tall person take up?
A lens for a 35-mm camera has a focal length given by f = 50.5 mm . How close to the CCD sensor should the lens be placed to form a sharp image of an object that is 5.20 m away?
A camera that has a 50.0 mm focal length lens is being utilized to photograph a person standing 4.75 m away. a) How far, in centimeters, must the film be from the lens? b) If the film is s = 36.0 mm high, what percent of the height of the film will a 1.65 m tall person take up?