Physics : CBSE Board Papers Class 10 - 2013 - Physics - Question 25
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Question - A student obtained a sharp image of a burning candle, placed at the farther end of a laboratory table, on a screen using a concave mirror. For getting a better value of focal length of the mirror, what should the student do? A. He should move the mirror away from the screen. B. He should move the mirror slightly towards the screen. C. He should move the mirror as well as the screen towards the newly selected object. D. He should move only the screen towards the newly selected object. 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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