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  • (a) If the image formed by a mirror for all positions of the object placed in front of it is always diminished, erect and virtual, state the type of the mirror and also draw a ray diagram to justify your answer. Write one use such mirrors are put to an

(a) If the image formed by a mirror for all positions of the object placed in front of it is always diminished, erect and virtual, state the type of the mirror and also draw a ray diagram to justify your answer. Write one use such mirrors are put to and why.
(b) Define the radius of curvature of spherical mirrors. Find the nature and focal length of a spherical mirror whose radius of curvature is + 24 cm.

 

 

 

 
 
 
 
 

Answers (1)

(a) The image formed by a mirror for all positions of the object placed in front of the mirror is the convex mirror.In which image always form diminished, erect and virtual. Here the ray of light is coming from distant and making the image between the P and F.
The concave mirror is used in front light of cars to reflect the light.
(b) Radius of curvature:
The radius of curvature of a spherical mirror is defined as the radius of the original sphere from which the mirror is belonged from.This is distant from the pole of the mirror and the centre of the spherical shell.
Given,
Focal length of the spherical mirror is=+24cm, so this a kind of convex mirror.


 

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Satyajeet Kumar

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