Home › UP Board Class 10 › Science › The Human Eye and the Colourful World › The least distance of distinct vision for a youn…
The least distance of distinct vision for a young adult is approximately:
Answer & Solution
Correct answer: A.
1. The near point of a normal young adult is about 25 cm.
2. Objects held closer cannot be focused sharply because the lens cannot increase curvature further.
3. This 25 cm distance is the least distance of distinct vision.
_Source: NCERT Class 10 Science, Ch 10 "The Human Eye and the Colourful World", §10.1.1_
Related questions
The apparent flattening of the Sun's disc at sunset is due to:A child cannot read words on the blackboard clearly. The likely defect and correction are:The image formed on the retina by the human eye is:Scattering of light is most pronounced when the wavelength of light is:Why must we hold a book about 25 cm away to read it comfortably?The eye lens is described as which type of biconvex structure?A 10-cm-tall object placed 30 cm in front of a 20-cm concave mirror has an image at:Why don't the planets twinkle but stars do?