Trait B is likely to have arisen earlier because this trait has been replicating and existing in a higher percentage of the population as compared to trait A.
Trait B is likely to have arisen earlier because this trait has been replicating and existing in a higher percentage of the population as compared to trait A.
For a normal human eye, this distance is 25 cm. The far point of the eye is the maximum distance to which the eye can see the objects clearly. The far point of the normal human eye is infinity.
For a normal human eye, this distance is 25 cm. The far point of the eye is the maximum distance to which the eye can see the objects clearly. The far point of the normal human eye is infinity.
The person is able to see nearby objects clearly, but he is unable to see objects beyond 1.2 m because the image formed in front of the retina. To correct this defect of vision, he must use a concave lens. The concave lens will bring the image back to the retina.
The person is able to see nearby objects clearly, but he is unable to see objects beyond
1.2 m because the image formed in front of the
retina.
To correct this defect of vision, he must use a concave lens. The concave lens will bring
the image back to the retina.
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and the distant objects are clearly visible to the eyes. To see the nearby objects clearly, the ciliary muscles contract making the eye lens thicker. Thus, the focal length of the eye lens decreases and theRead more
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length
increases, and the distant objects are clearly visible to the eyes. To see the nearby objects
clearly, the ciliary muscles contract making the eye lens thicker. Thus, the focal length of the
eye lens decreases and the nearby objects become visible to the eyes. Hence, the human eye lens is able to adjust its focal length to view both distant and nearby objects on the retina.
This ability is called the power of accommodation of the eyes.
If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
Trait B is likely to have arisen earlier because this trait has been replicating and existing in a higher percentage of the population as compared to trait A.
Trait B is likely to have arisen earlier because this trait has been replicating and existing in a higher percentage of the population as compared to trait A.
See lessA student has difficulty reading the blackboard while sitting in the last row. What could be the defect the child is suffering from? How can it be corrected?
The child is suffering from myopia. This defect can be corrected by using a concave lens of suitable focal length.
The child is suffering from myopia. This defect
See lesscan be corrected by using a concave lens of suitable focal length.
What is the far point and near point of the human eye with normal vision?
For a normal human eye, this distance is 25 cm. The far point of the eye is the maximum distance to which the eye can see the objects clearly. The far point of the normal human eye is infinity.
For a normal human eye, this distance is 25 cm. The far point of the eye is the maximum distance to which the eye can see the objects clearly. The far point of the normal human eye is infinity.
See lessA person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?
The person is able to see nearby objects clearly, but he is unable to see objects beyond 1.2 m because the image formed in front of the retina. To correct this defect of vision, he must use a concave lens. The concave lens will bring the image back to the retina.
The person is able to see nearby objects clearly, but he is unable to see objects beyond
See less1.2 m because the image formed in front of the
retina.
To correct this defect of vision, he must use a concave lens. The concave lens will bring
the image back to the retina.
What is meant by power of accommodation of the eye?
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and the distant objects are clearly visible to the eyes. To see the nearby objects clearly, the ciliary muscles contract making the eye lens thicker. Thus, the focal length of the eye lens decreases and theRead more
When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length
See lessincreases, and the distant objects are clearly visible to the eyes. To see the nearby objects
clearly, the ciliary muscles contract making the eye lens thicker. Thus, the focal length of the
eye lens decreases and the nearby objects become visible to the eyes. Hence, the human eye lens is able to adjust its focal length to view both distant and nearby objects on the retina.
This ability is called the power of accommodation of the eyes.