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प्रश्न
Mention if the following statement is true (T) or false (F) Give reason.
yellow spot of the retina is the region of colour vision
पर्याय
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
Write the function of the following part of the human eye: Cornea
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.
What is the name of:
the curved, transparent front surface of the eye?
Refraction of light in the eye occurs at:
(a) the lens only
(b) the cornea only
(c) both the cornea and the lens
(d) the pupil
Which of the following have a wider field of view?
(a) Animals having two eyes on the opposite sides of their head.
(b) Animals having two eyes at the front of their head.
The animals called predators have:
(a) both the eyes on the sides
(b) one eye on the side and one at the front
(c) one eye on the front and one at the back
(d) both the eyes at the front
Mention, where in living organism is the following located and state their main function:
Fovea centralis
Mention if the following statement is true (T) or false (F) Give reason.
Blind spot is called so because no image is formed on it.
With reference to the functioning of the eye, answer the question that follow:
What is the shape of the lens during distant vision?
Choose the correct answer.
In the chemistry of vision, the photosensitive substance is _________________
Name the following:
The pigmented circular area seen in the eye.
State the Function:
Iris
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
Write an Explanation.
Minimum distance of distinct vision
The muscular diaphragm that controls the size of the pupil is ____________.
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
Given below is a diagram depicting a defect of the human eye. Answer the questions that follow:
- Give the scientific term for the defect.
- Mention one possible reason for the defect.
- What type of lens can be used to correct the defect?
Select the option with incorrect identification:
Write the main functional activity of the following structure.
Choroid
