Human Eye and Colourful World
The least distance of distinct vision for a young adult with normal vision is about
(1) 25 meter
(2) 2.5 cm
(3) 25 cm
(4) 2.5 meter
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Human Eye and Colourful World The far point of myopic person is 75 cm in front of the eye. The nature and
power of the lens required to correct the problem, will be -
(1) convex lens, – 1.33 D
(2) concave lens, – 1.33 D
(3) concave lens, + 1.33 D
(4) convex lens, + 1.33 D
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Human Eye and Colourful World
The human eye can focus object s at different distance by adjusting the focal length of the eye-lens. This is due to
(1) presbyopia
(2) near-sightedness
(3) accommodation
(4) far-sightedness
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
