CBSE Class 12-science Answered
a convex mirror forms an image which is 1/2n times the size of the object . if focal length of the mirror is 2f then the distance of the object is?
Asked by thajvirkaur | 30 Jan, 2012, 12:44: PM
Expert Answer
hi/ho = -di/do
1/2n = -di/do
do = -2ndi
1/f = 1/di+ 1/do
1/2f = 1/di -1/2ndi
di = (2n-1)f/n
Now, 1/f = 1/di + 1/do
1/2f = n/(2n-1)f + 1/do
Now, we can calculate do
Answered by | 30 Jan, 2012, 04:55: PM
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