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19. Optical Instruments
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Q3 of 52 Page 431

A normal eye is not able to see objects closer than 25 cm because

Ciiiary muscles cannot contract beyond a limit , and hence it’s difficult to focus images beyond


25cm on retina.


Hence a normal eye cannot see an object placed at a distance far than 25cm or even closer than


25cm.

More from this chapter

All 52 →
1

The size of an object as perceived by an eye depends primarily on

2

The muscles of a normal eye are least strained when the eye is focussed on an object

4

When objects at different distances are seen by the eye, which of the following remain constant?

5

A person A can clearly see objects between 25 cm and 200 cm. Which of the following may represent the range of clear vision for a person B having muscles stronger than A, but all other parameters of eye identical to that to A?

Questions · 52
19. Optical Instruments
1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
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