Saved Bookmarks
| 1. |
An object of size 5 cm is placed in front of a convex mirror of focual length 20 Cm at a distance of 20 cm in front of mirror and find position , nature and sized of a image. |
|
Answer» of curvature (R) = 20 CMF = R/2 = 20/2 = 10cmu = -20 cm,h= 5 cm.1/v +1/u = 1/f1/v = 1/10+ 1/20 = 3/20v = 20/3 = 6.6 cm.Image is VIRTUAL and erect and FORMED behind the mirror.hi/h0= v/uhi/5= 6.6/20hi = 6.05 cm.Size of image is 6.05cm. |
|