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What is Stereoscopic Vision? - Biology

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Question

What is a stereoscopic vision?

Short Note

Solution

The capacity to perceive a three-dimensional image due to simultaneous focusing of both eyes on an object is called stereoscopic (binocular) vision.

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Chapter 8: The Nervous System and Sense Organs - Short Questions

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ICSE Biology [English] Class 10
Chapter 8 The Nervous System and Sense Organs
Short Questions | Q 20

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Answer briefly:

How do you perceive the colour of an object?


How does the eye regulate the amount of light that falls on the retina?


The size of the pupil becomes ______ when you see in dim light.


With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects.


Explain the mechanism of vision.


Name two parts of the eye which refract light rays (or bend light rays).


Where is the image formed in a human eye?


State the main functions of the following:
Seminal Vesicles  


Choose the correct answer : 
The rods and cones of a vertebrate retina function is to _________


Differentiate between:

Retina and Choroid.


Name the following:
The pigmented circular area seen in the eye.


Write the name.

The fleshy screen behind cornea.


Why the human eye is compared with camera?


Draw the struture of human eye and label its parts.


At noon the sun appears white as


______ is a transparent layer.


The innermost layer of human eye is ______.


Match the following:

Column - I Column - II
1. Retina a. Path way of light
2. Pupil b. Far point comes closer
3. Ciliary muscles c. near point moves away
4. Myopia d. Screen of the eye
5. Hypermetropia e. Power of accommodation

Name the following:

The fibres which collectively hold the lens in position.


Name the following:

The layer of the wall of the eye-ball that corresponds to the black lining of the box of a camera


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