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PSEB-THE HUMAN EYE AND THE COLOURFUL WORLD-Exercise
- The human eye can focus object at different distances by adjusting the...
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- The human eye forms the image of an object at its:
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- The least distance of distinct vision for a young adult with normal vi...
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- The change in focal length of an eye lens is caused by the action of t...
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- A person needs a lens of power -5.5 d for correcting his distant visio...
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- The far point of a myopic person in 80 cm in front of the eye. What is...
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- The near point of a hypermetropia eye is 1 m find the power of the len...
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- Why is a normal eye not able to see clearly the objects placed closer ...
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- What happens to the image distance in the eye when we increase the dis...
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- Why do stars twinkle?
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- Explain why the planets do not twinkle.
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- Why does the sun appear reddish in the morning (as well as in evening)...
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- Why does the sky appears dark instead of blue to an astronaut?
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