

InterviewSolution
Saved Bookmarks
1. |
convex mirror is 10 cm. Where should an object be placed in front of3. Focal length of a convex mirroxFocaa convex mirror so that the image of half tho size of the object/3.is formed?Ans - 10 cml |
Answer» <p>Since it is 1/2 times reduced, m = 1/2</p><p>so -v/u = 1/2</p><p>similarly, 1/v + 1/u = 1/f</p><p>so 1/v + 1/u = 1/-10</p><p>-v/v + -v/u = -v/-10 (multiply throughout by -v)</p><p>-1 -2 = v/10</p><p>-3 = v/10</p><p>v = -30</p><p>1/2 = -v/u</p><p>1/2 = 30/u</p><p>u = 60</p><p>Read more on Brainly.in - https://brainly.in/question/2120407#readmore</p> | |