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When a converging lens is used in a camera (as in the first drawing), the film...
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...
28. Consider a slide projector that consists of a single converging lens. The slide has an illuminated region of 2cm x 2cm. The screen is 10 m from lens. (a) Should the slides be put into the projector upside down or right side up (i.e. is the image inverted) ? (b) How far from the lens should the slide be placed so that the image has size of 2 m x 2 m (assume the focal length of the lens...
6. Describe and explain one method for finding the focal length of a converging lens. 7. What type of lens would be most effective in starting a fire using light from the sun? Explain how this is done. Where is the object located in this situation and where will the image be formed? 8. In a movie theater, the projector must enlarge a relatively small image on the film to fill up the large screen at a large distance away....
Consider a converging lens whose focal length is 6.95 cm. An object is placed on the axis of the lens at a distance of 13.5 cm from the lens. How far is the object's image from the lens? image distance: cm If it can be determined, is the image real or virtual? cannot be determined real virtual If it can be determined, is the image upright or inverted with respect to the object? cannot be determined inverted upright
QUESTION 7 An object is placed a distance p = 82.4 cm from a converging lens. An image forms at a distance q = 39.9 cm from the lens. What is the focal length (f) of the lens in centimeters (cm)? Object Distance, P i mage distance, mage (Real) QUESTION 8 - 64 cm behind the lens. What is the An object is placed a distance of p = 48 cm before a lens and an image forms a distance...
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 for our thin/simple lens setup with a converging lens we end up with a real, inverted image. Select all of the following variables that are negative? Question 11 2 pts Suppose for our thin simple ens setup with a converging ens we end up with a real erted mage se ect all o he o nga a est at e ne e「 Magnification (M) O Object height (ho) Image distance () Focal length (f) Image Height (hi) Question 12...
(a) An object is placed 7.5cm from a converging lens having a 5cm focal length. Use ray tracing to get the image and measure image distance. Describe the image from your drawing (upright/inverted, real/virtual, bigger/smaller). Please use ruler to get as accurate as you could (b) Use the lens equations to calculate the location of the image and its magnification. Describe the image from your calculation (upright/inverted, real/virtual, bigger/smaller).
A converging lens with a focal length of 40 cm is used to form an image on a screen that is 2.8 m behind the lens. At what distance in front of the lens must the object be placed?