Question

An object is placed at a distance of 10 cm from a comex minor of focal length
15 cm. Find the position and nature of the image​

Answer 1

Answer:

t is to be remembered that a convex mirror always forms the virtual, erect and diminished image.

Given: Object distance, u=−10cm     Focal length, f=15cm

To find: Image distance, v

From mirror formula :

v

1

​  

+  

u

1

​  

=  

f

1

​  

 

v

1

​  

−  

10

1  

=  

15

1

v

1  

=  

15

1  

+  

10

1  

=  

150

25

v=6cm

Hence image will be formed 6 cm beyond the mirror, i.e virtual magnification

m=  

u

−v  

=  

−10

−6

=0.6

Hence it will be erect and diminished.