Question

1. A man stands 2 metres away from a concave mirror of 1 metre focal length. Calculate the distance of the image of the man from the pole of the mirror. Will the image formed be real or virtual? Also calculate the image magnification and find the image size and its nature

Answer 1

Answer:

Given: Concave mirror  f=−10cm     and        m=−2      height of object=h

Solution: Since m=  

u

−v

​  

=2=  

h

hi

​  

 

v=−2u  

So, from mirror formula

v

1

​  

+  

u

1

​  

=  

f

1

​  

 

v

u

​  

=  

f

u

​  

−1

m=  

u

−v

​  

=  

f−u

f

​  

 

Since m=−2=  

f−u

f

​  

 

−2f+2u=f

u=  

2

3f

​  

=−15cm

u=−15cm    And   m=−2=  

u

−v

​  

 

So  v=−30cm

Explanation:

Answer 2

Explanation:

here is the solution, If This Is Correct Mark Me As Brilliant