The questions in this section are to be answered by circling the correct multiple-choice answer AND...
An object is placed 100cm in front of a lens of focal length 50cm. A lens of focal length -20cm is placed 90cm beyond the first lens. a) Where is the final image located? b) Is this a real or virtual image? c) What is the magnification of the lens combination? d) Is the final image inverted or upright? e) Is the final image bigger or smaller than the object?
1. The distance from the center of a lens to the location where parallel rays converge or appear to converge is called the length. convergence O meeting O focal O None of the above 2. When incoming rays are the focal point and the image point are the same. O parallel O from a nearby object O passing through the near side focal point O None of the above 3. A(n) image will not appear on a screen placed at...
Parts a through d are a part of the SAME problem. THANK YOU in advance! 3. Single converging (convex) lens: Suppose an object is placed a distance 8 cm to the left of a convex lens of focal length 10 cm. (a) On a separate sheet of paper, make a scaled ray drawing. Use a ruler. A free hand sketch is not acceptable State whether the image is real or virtual and upright or inverted the lateral magnification of the...
gibly drawn to scale ray diagrams showing h ation ng configuration: converging lens of 15em fixed focal length em in length. An object is placed at 0.0 em, can be detected is placed somewhere on an optical bench of 240 and a screen is placed where ever a focused image Use the illustrations on the following pages to construct one ray diagram for each of the following situations, using the basic configuration given above. Situation a) Measuring from the object...
Need answer for all multiple choice 30. If f78 and 1/125 (s) gives the (s) under the same lighting condition? proper exposure, what f-stop number should be used with 1/500 a) fi4 c)f116 a) You choose a bigger f/# pth of field (DOF) without changing the exposure, you do which of the following? c) You 32. Which of the following is NOT TRUE for a Keplerian telescope? b) You increase the shutter speed. d) You choose a wide-angle camera lens....
Could you explain parts c through f as well please? Thank you! lens! 1 f = 100cm lens 2 f2 = 50cm 30cm 40cm Two converging lenses are positioned 40 cm apart, as shown in the figure. The vertical lines represent the lenses, as we usually draw them. The first lens (left) has a focal length of 100 cm, and the second lends (right) has a focal length of 50 cm. An object is placed 30 cm to the left...
An object is placed 15.0 cm to the left of a convex (converging) lens of focal length 20.0 cm. The image of this object is located (Figure out if the image is real or virtual, it will help to locate the image] O 60.0 cm to the left of the lens. O 60.0 cm to the right of the lens. O 8.57 cm to the right of the lens. O 8.57 cm to the left of the lens. Question 8...
A small object is placed 25.0 cm from a converging lens of focal length 40.0 cm. The object is to the left of the lens. Where is the image? A- 17cm to the right of the lens B- 25cm to the left of the lens C- 17 cm to the left of the lens D-25 cm to the right of the lens E-67cm to the right of the lens F-67 cm to the left of the lens A small object...
9. -15 points KatzPSE1 38.P.076 My Notes Ask Your The figure below shows an object placed a distance doi from one of two converging lenses separated by s 1.00 m. The first lens has focal length fi 23.0 cm, and the second lens has focal length 2 47.0 cm. An image is formed by light passing through both lenses at a distance = 12.0 cm to the left of the second lens. Include the sign of the value in your...
2) (20 pts) A lens of focal length +20cm is placed 50cm to the left of a mirror of focal length 40cm. An object is located 60cm to the left of the lens (follow sign conventions). A) (10 pts) for the intermediate image: i) What is the image distance (relative to the lens)? ii) What is the magnification? iii) For each of the following, circle the answer that describes the quality of the image: Real / Virtual Upright / Inverted...