Physics : CBSE Board Papers Class 10 - 2013 - Physics - Question 26
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Question - A student focussed the image of a distant object using a device 'X' on a white screen 'S' as shown in the figure. If the distance of the screen from the device is 40 cm, select the correct statement about the device. -------- A. The device X is a convex lens of focal length 20 cm. B. The device X is a concave mirror of focal length 40 cm. C. The device X is a convex mirror of radius of curvature 40 cm. D. The device X is a convex lens of focal length 40 cm. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses
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