Question

Diameter of the sun
1400 OOOooo m: 1.4 yo'm​

Answer 1

Answer:

In the given problem,

u=−10  

11

 m

Since, focal length is very small as compared to the object distance, it is considered that the image is formed at focus.

v=2 m

Magnification, m=  

u

v

​  

=  

h  

object

​  

 

h  

image

​  

 

​  

 

∴h  

image

​  

=v  

u

h  

object

​  

 

​  

 

∴h  

image

​  

=2×  

10  

11

 

1.4×10  

9

 

​  

 

∴h  

image

​  

=2.8 cm

∴radius=2.8/2=1.4 cm

Step-by-step explanation: