Write the function of ciliary muscles of human eye.

The ciliary muscle is an intrinsic eye muscle that forms a ring of smooth muscle in the central layer of the eye (vascular layer). It regulates the flow of aqueous humour into Schlemm's canal and governs accommodation for viewing objects at different distances. The zonules are relaxed or tightened by this muscle, allowing the lens to change shape for focusing. The zonules are fibres that keep the lens in place while allowing it to change shape during accommodation.

Write the function of crystalline lens of human eye.

The crystalline lens, also known as the lens of the eye, is an important part of the anatomy of the eye that allows the eye to focus on objects at different distances. It is situated in front of the vitreous body, behind the iris. It's also bendable, allowing it to change shape and bend light to appropriately focus on the retina.

Write the function of cornea of human eye.

Cornea is a thin membrane that surrounds the eyeball and protects it. It works like a lens, refracting the light that enters the eye. The cornea, along with the sclera, acts as a barrier against dirt, bacteria, and other particles that could harm the sensitive components of the eye. The cornea also filters out some UV light from the sun.

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Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - The Human Eye and The Colourful World>Exercise>Q 35

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Explain the function of vitreous humour.

Important Questions on The Human Eye and The Colourful World

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Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - The Human Eye and The Colourful World>Exercise>Q 1

The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to:

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Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - The Human Eye and The Colourful World>Exercise>Q 2

A person cannot see the distant objects clearly (though he can see the nearby objects clearly). He is suffering from the defect of vision called

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Science Crash Course (Based on Revised Syllabus-2023)>Chapter 11 - The Human Eye and The Colourful World>Exercise>Q 3

For the refraction of a ray of light through a glass prism, the path of a ray of light is shown ahead.
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The angle of incidence, the angle of emergence and the angle of deviation respectively have been represented by: