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प्रश्न
Complete the following sentence with appropriate Word
The part of the human eye where rod cells and cone cells are located is the:
विकल्प
Retina
Cornea
Choroid
Sciera
उत्तर
Retina
APPEARS IN
संबंधित प्रश्न
Explain the mechanism of vision.
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
How does the convex eye-lens differ from the ordinary convex lens made of glass?
The human eye possesses the power of accommodation. This is the power to:
(a) alter the diameter of the pupil as the intensity of light changes
(b) distinguish between lights of different colours
(c) focus on objects at different distances
(d) decide which of the two objects is closer.
A man driving a car can read a distant road sign clearly but finds difficulty in reading the odometer on the dashboard of the car. Which of the following statement is correct about this man?
(a) The near point of his eyes has receded away.
(b) The near point of his eyes has come closer to him.
(c) The far point of his eyes has receded away.
(d) The far point of his eyes has come closer to him.
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.
Mention if the following statement is true (T) or false (F) Give reason.
Short-sightedness and hyperopia are one and the same thing
Define the following:
Yellow spot
Define the following:
Power of accommodation
Choose the correct answer.
Colour is detected by ____________
Name the following:
The focal length of the lens is altered by the contraction of which type of muscles.
Choose the Odd One Out:
Draw a scientifically correct labelled diagram of a human eye and answer the questions based on it:
- Name the type of lens in the human eye.
- Name the screen at which the maximum amount of incident light is refracted?
- State the nature of the image formed of the object on the screen inside the eye.
The image of an object at an infinite distance is obtained in a real and erect form through a convex magnifying glass.
For a healthy human eye, the distant point is infinite distance.
Why the human eye is compared with camera?
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.
A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?
 |
 |
 |
 |
| (A) | (B) | (C) | (D) |
With reference to human eye answer the question that follow:
Name the part of the eye associated with the layer providing nourishment to the eye.
