alleryThe least distance of distinct vision for a young adult is approximately:
A25 cm
B50 cm
C10 cm
D100 cm
Answer & Solution
Correct answer: A. 25 cm
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: syllabus Science, Ch 10 "The Human Eye and the Colourful World", §10.1.1_
Keep practising Refraction of Light and Lenses
Browse all Refraction of Light and Lenses questions for Andhra Pradesh SSC (Class 10), or explore more Science topics.
Related questions
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:A 10-cm-tall object placed 30 cm in front of a 20-cm concave mirror has an image at:Cataract refers to:A myopic person's far point is 50 cm. The corrective lens has power:Tyndall effect refers to:The phenomenon of dispersion was first scientifically demonstrated by: