A teacher drew the diagram of heart on the blackboard and told the students to copy it in their notebooks. Mahesh couldn't see the diagram clearly as it appeared blurred to him. Mahesh consults an eye doctor and is prescribed suitable lenses to correct the defect. Which type of lens do his spectacles have?
Explanation
Concave lenses are used to correct near-sightedness, which is the condition where the image appears blurred due to the eyeball being too long or the cornea being too steep, causing light to focus in front of the retina.
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