Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of :

Question

Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of : (i) 0.50 m (ii) 0.25 m (iii) 0.15 m

Philoid · Accepted Answer

focal length = 0.20 m

(i) Object distance = 0.50 m

Using lens formula,

Image distance, v = + 0.33 m ; The image is formed 0.33 m behind the lens ; m = - 0.66 ; Real and inverted

(ii) Object distance = 0.25 m

Using lens formula,

Image distance, v = + 1.00 m ; The image is formed 1.00 m behind the lens ; m = - 4.0 ; Real and inverted

(iii) Object distance = 0.15 m

Using lens formula,

Image distance, v = - 0.60 m ; The image is formed 0.60 m in front of the lens ; m = + 4.0; Virtual and erect

Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of :(i) 0.50 m (ii) 0.25 m (iii) 0.15 m

Find the nature, position and magnification of the images formed by a convex lens of focal length 0.20 m if the object is placed at a distance of :
(i) 0.50 m (ii) 0.25 m (iii) 0.15 m