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Question
A person wears concave lenses for correcting vision. When he is not using the lenses, the image of an object kept at a considerable distance from him will be formed
A person wears concave lenses for correcting vision. When he is not using the lenses, the image of an object kept at a considerable distance from him will be formed
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Solution
The correct option is C in front of the retina
Concave lenses are used for near-sightedness or myopia.
In this case, the person can clearly see the objects that are kept close to them but, the objects kept far away will appear blurry. This happens when the lens present in the eye doesn't focus the light on the retina.
The distance between the crystalline lens or the cornea and the retina is longer than usual in such cases, resulting in the formation of the image in front of the retina.
Concave lenses help to diverge the light rays coming from a distant object. These divergent rays will now enter the eye. The crystalline lens present in the eye will now converge these divergent rays on the retina rather than in front of the retina.
Hence, when the person uses concave lenses, the image of the object kept at a considerable distance from him will be formed on the retina now. Therefore, with the help of the concave lenses, the person will now be able to see distant objects also clearly.
In the absence of these concave lenses, image will be formed in front of the retina rather than on the retina thereby making the image of the distant objects blurry.
Concave lenses are used for near-sightedness or myopia.
In this case, the person can clearly see the objects that are kept close to them but, the objects kept far away will appear blurry. This happens when the lens present in the eye doesn't focus the light on the retina.
The distance between the crystalline lens or the cornea and the retina is longer than usual in such cases, resulting in the formation of the image in front of the retina.
Concave lenses help to diverge the light rays coming from a distant object. These divergent rays will now enter the eye. The crystalline lens present in the eye will now converge these divergent rays on the retina rather than in front of the retina.
Hence, when the person uses concave lenses, the image of the object kept at a considerable distance from him will be formed on the retina now. Therefore, with the help of the concave lenses, the person will now be able to see distant objects also clearly.
In the absence of these concave lenses, image will be formed in front of the retina rather than on the retina thereby making the image of the distant objects blurry.
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