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LAKHMIR SINGH & MANJIT KAUR-THE HUMAN EYE AND THE COLOURFUL WORLD -Exercise
- A man driving a car can read a distant road sign clearly but finds dif...
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- The defect of vision which the eye-lens of a person gets progressively...
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- A person cannot see distant objects clearly. His vision can be correct...
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- A person finds difficulty in seeing nearby objects clearly. His vision...
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- In a certain murder investigation, it was important to discover whethe...
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- The near point of a long-sighted person is 50 cm from the eye. (a) C...
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- A person can read a book clearly only if he holds it at an arm's lengt...
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- How much is our field of view : (a) with one eye open ? (b) with b...
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- Fill in the following blanks with suitable words : (a) Having two ey...
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- What are the advantages of having two eyes instead of just one ?
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- Explain clearly why, a person who has lost the sight of one eye is at ...
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- Name two animals having eye : (a) on the sides of the head. (b) at...
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- With both eyes open, a person's field of view is about :
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- Having two eyes gives a person :
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- As light rays pass from air into a glass prism, are they refracted tow...
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- As light rays emerge from a glass prism into air, are they refracted t...
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- Name a natural phenomenon which is caused by the dispersion of sunligh...
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- What information do we get about sunlight from the formation of a rain...
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- What did Newton demonstrate by his experiments with the perism ?
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- What colours make up white light ?
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