Solutions of The Human Eyes And The Colorful Wor (Page No- 284) - Physics By Lakhmir Singh, Class 10 Class 10 Notes | EduRev

Class 10 Physics Solutions By Lakhmir Singh & Manjit Kaur

Class 10 : Solutions of The Human Eyes And The Colorful Wor (Page No- 284) - Physics By Lakhmir Singh, Class 10 Class 10 Notes | EduRev

The document Solutions of The Human Eyes And The Colorful Wor (Page No- 284) - Physics By Lakhmir Singh, Class 10 Class 10 Notes | EduRev is a part of the Class 10 Course Class 10 Physics Solutions By Lakhmir Singh & Manjit Kaur.
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Lakhmir Singh Physics Class 10 Solutions Page No:284

Question 5: Fill in the following blanks with suitable words :
 (a) Having two eyes gives a…………. field of view.
 (b) Having two eyes enables us to judge………….. more accurately.

Solution : (a) wider
(b) distances

Question 6: What are the advantages of having two eyes instead of just one ?

Solution : Following are the advantages of having two eyes instead of one:
1. Having two eyes gives a wider field of view.
2. Having two eyes enables us to judge distances more accurately.

Question 7: Explain clearly why, a person who has lost the sight of one eye is at a disadvantage compared with the normal person who has two good eyes.

Solution : A person who has lost the sight of one eye has a narrower field of view than the normal person who has two good eyes. Also, the person with one eye cannot judge distances accurately.

Question 8: Name two animals having eyes :
 (a) on the sides of the head.
 (b) at the front of the head.

Solution : (a) Rabbit, deer
(b) Tiger, lion

Question 9: Among animals, the predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head. Why is this so ?

Solution : The predators (like lions) have their eyes facing forward at the front of their heads, whereas the animals of prey (like rabbit) usually have eyes at the sides of their head so that they can see their enemies (predators) in a very large area around them and try to escape from them.

Question 10: Five persons A, B, C, D and E have diabetes, leukaemia, asthma, meningitis and hepatitis, respectively.
 (a) Which of these persons can donate eyes ?
 (b) Which of these persons cannot donate eyes ?

Solution : (a) A and C
(b) B, D and E

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