Question

for concave mirror if U= {subract} 12cm and V=12cm thn R is?

Answer 1

Answer:

Explanation:

Given that,

Focal length of a concave mirror f=12cm

Object length h=4

Real image length h  

′

=1cm

We know that,

 m=−  

u

v

​  

=  

−f−(u)

−f

​  

 

−  

u

1

​  

=  

−12−u

−12

​  

 

12+u=−48

u=−48−12

u=−60cm

Hence, the object distance is 60 cm