✓ Board-verified↻ asked 2×
Science · 2024 · 1 mark
CBSE 2024 · Region 2 · Set 1 · Q13
Consider the following statements in the context of human eye :(a)The diameter of the eye ball is about $\displaystyle 2.3$ cm.(b)Iris is a dark muscular diaphragm that controls the size of the pupil.(c)Most of the refraction for the light rays entering the eye occurs at the crystalline lens.(d)While focusing on the objects at different distances the distance between the crystalline lens and the retina is adjusted by ciliary muscles. The correct statements are -
Consider the following statements in the context of human eye :
(a)
The diameter of the eye ball is about $\displaystyle 2.3$ cm.
(b)
Iris is a dark muscular diaphragm that controls the size of the pupil.
(c)
Most of the refraction for the light rays entering the eye occurs at the crystalline lens.
(d)
While focusing on the objects at different distances the distance between the crystalline lens and the retina is adjusted by ciliary muscles. The correct statements are -
Official answer
From CBSE’s own marking scheme for this paper.
(A)
(a) and (b)
More from The Human Eye and the Colourful World
- A person allowed a narrow beam of white light from the sun to enter a dark room through a small aperture and…2025 · asked 3×
- A narrow beam XY of white light is passing through a glass prism ABC as shown in the diagram: Trace it on…2023 · asked 3×
- When a beam of white light passes through a region having very fine dust particles, the colour of light…2024 · asked 3×
- Give reasons: (i) The sky appears dark to passengers flying at very high altitude. (ii) 'Danger' signal…2025 · asked 3×
- Observe the following diagram showing an image formation in an eye: Identify the defect of vision shown in…2023 · asked 3×
- The colour of light for which the refractive index of glass is minimum, is:2024 · asked 3×
- Observe the following diagram and answer the questions following it: (i) Identify the defect of vision shown.…2023 · asked 3×
- Two green plants are kept separately in oxygen free containers, one in the dark and other in sunlight. It was…2023 · asked 3×
CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.