Question

what is Sharpe focused image ?

Answer 1

Answer:

Mirror formula :

 

v

1

​  

+  

u

1

​  

=  

f

1

​  

...........(1)

So, u=−27cm

Concave mirror have negative focal length.

f=−18cm

Putting the values in (1),

v

1

​  

+  

−27

1

​  

=  

−18

1

​  

 

We get , v=−54cm

Also,

Magnification =  

h  

1

​  

 

h  

2

​  

 

​  

=  

u

−v

​  

 

7.0

h  

2

​  

 

​  

=−  

−27

−54

​  

 

h  

2

​  

=−14.0cm

Image will be real and inverted and will be of size 14 cm.

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Explanation:

Answer 2

Explanation:

hi

In photography, we strive to take “sharp” photos. Generally, this means that you want the subject to be in focus with clear lines, crisp details, and no (unintended) blurring. It's a combination of accurate focus, a static camera, and the properties of the lens you're using.

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