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Solutions of The Human Eyes And The Colorful Wor (Page No- 282) - Physics By Lakhmir Singh, Class 10 | Extra Documents, Videos & Tests for Class 10 PDF Download

Lakhmir Singh Physics Class 10 Solutions Page No:282

Question 1: How much is our field of view :
(a) with one eye open ?
(b) with both eyes open ?

Solution : (a) About 150o
(b) About 180o

Question 2: Which of the following have a wider field of view ?
 (a) Animals having two eyes on the opposite sides of their head.
 (b) Animals having two eyes at the front of their head.

Solution : Animals having two eyes on the opposite sides of their head.

Question 3: Out of animals of prey and predators, which have their eyes :

  1.  at the front of their head ?
  2. on the opposite sides of their head ?

Solution :

  1. Predators
  2. Animals of prey

Question 4: State whether the following statement is true or false :

Rabbit has eyes which look sideways.

Solution : True

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FAQs on Solutions of The Human Eyes And The Colorful Wor (Page No- 282) - Physics By Lakhmir Singh, Class 10 - Extra Documents, Videos & Tests for Class 10

1. What are the different parts of the human eye?
Ans. The human eye consists of several parts, including the cornea, iris, pupil, lens, retina, and optic nerve. Each part plays a specific role in the process of vision.
2. How does the human eye perceive colors?
Ans. The human eye perceives colors through a process called color vision. This is possible due to photoreceptor cells in the retina called cones, which are sensitive to different wavelengths of light. The cones send signals to the brain, allowing us to perceive different colors.
3. What causes nearsightedness and farsightedness in the human eye?
Ans. Nearsightedness, also known as myopia, occurs when the eyeball is longer than normal or the cornea is too curved. This causes light to focus in front of the retina, resulting in a blurred image of distant objects. Farsightedness, also known as hyperopia, occurs when the eyeball is shorter than normal or the cornea is too flat. This causes light to focus behind the retina, resulting in a blurred image of nearby objects.
4. Can the human eye see ultraviolet (UV) light?
Ans. The human eye is not able to see ultraviolet (UV) light. UV light has a shorter wavelength than visible light, and our eyes lack the necessary photoreceptor cells to detect it. However, some animals, such as bees and birds, are able to see UV light.
5. How does the brain process visual information received from the eyes?
Ans. Visual information received from the eyes is processed by the brain in several stages. The optic nerve carries signals from the retina to the brain's visual cortex, where the information is interpreted. The brain processes various visual cues, such as color, depth, and motion, to create a coherent visual perception of the world.
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