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 : -. |
Human Eye and Colourful World
The sky appears blue due to
(1) reflection of light
(2) refraction of light
(3) total internal reflection of light
(4) scattering of light
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
