A 50 mm lens is focused on an object 5.0 m from the lens. The image position is fixed (as in a camera). How far does the lens need to be moved to focus on an object 3.0 m from the lens? 0.34 mm
By lens formula,
1/f = 1/u + 1/v
here, f = 50 mm = 0.05 m
initially,
u = 5.0 m
then, 1/v = 1/0.05 - 1/5.0
v = 5*0.05/(5-0.05)
v = 50.5 mm
now, u = 3.0 m
then, 1/v = 1/0.05 - 1/3.0
v = 3*0.05/(3.0-0.05)
v = 50.84 mm
So, lens is moved by distance(d) = 50.84 - 50.5
d = 0.34 mm
Please upvote.
A 50 mm lens is focused on an object 5.0 m from the lens. The image...
Suppose your 48-mm focal length camera lens is 54 mm away from the image sensor in the camera. How far away, in meters, is an object that is in focus? What is the object height, in meters, if its image is 1.75 cm high? h_o =
50. How far from the lens must the film in a camera be, if the lens has a 35.0-mm focal length and is being used to photograph a flower 75.0 cm away? Explicitly show how you follow the steps in the Problem-Solving Strategy: Lenses. 55. Suppose your 50.0 mm-focal length camera lens is 51.0 mm away from the film in the camera. (a) How far away is an object that is in focus? (b) What is the height of the...
Suppose your 50.0 mm focal length camera lens is 51.0 mm away from the film in the camera. (a) How far away in m) is an object that is in focus? x m (b) What is the height (in m) of the object if its image is 1.90 cm high? m
A 105 mm focal length lens is used to focus an image on the sensor of a camera. The maximum distance allowed between then lens and the sensor plane is 132 mm. How far in front of the sensor should the lens (assume thin) be positioned if the object to be photographed is place 7.5 m away. a. 105 mm 106.49 mm Ob. 106.11 mm Oc. 132 mm d.
To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f = 440 mm) is to be focused on an object located first at a distance of 3.5 m and then at 50.0 m. Over what distance must the lens be movable?
To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f = 270 mm) is to be focused on an object located first at a distance of 3.5 m and then at 50.0 m. Over what distance must the lens be movable?
Suppose your 50.0 mm focal length camera lens is 51.2 mm away from the film in the camera. How far away is an object that is in focus? Submit Answer Tries 0/5 What is the height of the object if its image on the film is 1.1 cm high? Submit Answer Tries 0/5 Suppose your 50.0 mm focal length camera lens is 51.2 mm away from the film in the camera. How far away is an object that is in...
A camera with a lens diameter D = 3 mm and a focal length of f = 4.25 mm. Assume the wavelength of light is 500 nm and the sensor in the camera is 5 mm x 5 mm and that each pixel has a size of 2μm x 2μm. A) If a vertical meter stick is located 5m from the camera and the image of the meter stick is in focus, how far from the lens is the sensor?...
Suppose your 59-mm-focal-length camera lens is 63 mm away from the film in the camera. How far away is an object that is in focus? 929.2 mm What is the height of the object if its image is 1 cm high? Give your answer as an absolute value of the height of the object. 29.4985 cm.
2. A camera has a single converging lens with a fixed focal length f. (a) How far should the lens be from the film in order to focus an object that is infinitely far away (namely the incoming light rays are parallel with the principal axis of the system) (b) How far should the lens be from the film to focus an object at a distance of 2f in front of the lens? (c) What is the magnification of the...