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  • Name the type of defect of vision a person is suffering from, if he uses convex lenses in his spectacles for the correction of his vision. If the power of the lenses is +0.5 D, find the focal length of the lenses.  

Name the type of defect of vision a person is suffering from, if he uses convex lenses in his spectacles for the correction of his vision. If the power of the lenses is +0.5 D, find the focal length of the lenses.

 

 

 

 
 
 
 
 

Answers (1)

Name of the defect - Hypermetropia

Power = + 0.5

f =\frac{1}{P}

f =\frac{1}{0.5}\Rightarrow 2

Focal length = 2cm.

Posted by

Priyanka Kumari

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