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प्रश्न
State the Function:
Ear drum
उत्तर
It vibrates according to the sound waves and transmits them across the middle ear.
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संबंधित प्रश्न
Explain why the image distance in the eye does not change when we change the distance of an object from the eye?
Fill in the following blank with suitable word:
To bring light from a distant object to a focus on the retina of the eye, the convex eye-lens needs to be made..........
Fill in the following blank with suitable word:
To bring light from a near object to a focus on the retina of the eye, the convex eye-lens need to be made....................
If you walk from a dark room into sunlight and back again into dark room, how would your pupils alter in size? What makes this happen?
Explain why, we cannot see our seats first when we enter a darkened cinema hall from bright light but gradually they become visible.
Nocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.
How much is our field of view:
with one eye open?
Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
Which of these persons cannot donate eyes?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Cones : Iodopsim :: Rods : ______.
In what two ways is the yellow spot different from the blind spot?
Name the muscles of the eye responsible for the power of accommodation.
Define the following:
Power of accommodation
Give Technical Term:
Name the part of the retina on which an object is focused for the clearest vision.
State the Location of:
Lacrimal gland
Complete the following sentence with appropriate Word
The photoreceptor cells of the retina sensitive to colour are:
The following figure show the change in the shape of the lens while seeing distant and nearby objects. Complete the figures by correctly labelling the diagram.
When light rays enter the eye, most of the refraction occurs at the ____________.
Eyes of the nocturnal birds have large cornea and a large pupil. How does this structure help them?
The coloured portion of the eye is the ______.
Which cells of the retina enable us to see coloured objects around us?
