logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
0 votes

An extended objected is placed perpendicular to principal axis of a concave mirror of radius of curvature 20 cm at a distance of 15 cm from pole. Find the lateral magnification produced

$(a)\;1 \\ (b)\;-2 \\ (c)\;2 \\ (d)\;-1 $

Can you answer this question?
 
 

1 Answer

0 votes
$u=-15 \;cm$
$f=-10\;cm$
$\large\frac{1}{v} +\frac{1}{u}=\frac{1}{f}$
gives $v =-30\;cm$
$\therefore m=\large\frac{-v}{u}$
$\qquad=-2$
Hence b is the correct
answered Feb 11, 2014 by meena.p
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...