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प्रश्न
Assertion (A): Rods and Cones are photoreceptors in the sclera of eyeball.
Reason (R): Rods are sensitive to dim light.
पर्याय
A is True and R is False.
A is False and R is True.
Both A and R are True.
Both A and R are False.
उत्तर
A is False and R is True.
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संबंधित प्रश्न
What is the:
near point of a normal human eye?
Give the scientific names of the following parts of the eye:
carries signals from an eye to the brain.
Fill in the following blank with suitable words:
When light is dim, the pupil becomes................
Explain the functions of the following parts of the eye:
(i) cornea
(ii) iris
(iii) pupil
(iv) ciliary muscles
(v) eye-lens
Out of animals of prey and predators, which have their eyes:
on the opposite sides of their head?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Cones : Iodopsim :: Rods : ______.
Mention if the following statement is true (T) or false (F) Give reason.
Ciliary muscles regulate the size of the pupil
What is a lacrimal gland?
Give the main function of the following:
Retina
Draw a labeled diagram of the front view of human eye.
State the Function:
Ear drum
Choose the Odd One Out:
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
Name the capacity of the eye lens to change its focal length as per need.
Name the part of the eye which gives colour to the eyes.
With reference to human eye, answer the following question.
What is blind spot?
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:
Place of no vision in the retina of the eye.
Name the following:
The fibres which collectively hold the lens in position.
Name the following:
Two pigments of the sensory cells.
