Answer these questions:-
1. What kind of reflection occurs when reading a newspaper?
2. Name the defect the eye is suffering from, when it cannot see
a nearby object clearly.
3. What do you understand by multiple reflection?
4. How can you find out the number of images formed in mirrors
inclined at different angles?
5. What is astigmatism?
6. Why is the mirror image known as upright image?
Pls I need it fast anyone
Answers
Answer:
1:Diffuse reflection occurs usually in surfaces built from a non-absorbing powder like plaster and papers. This diffused reflection of light caused visibility of the object. The scattered lights create the image of the object in the eye of an observer.
2:The defect of an eye in which it cannot see the distant objects clearly is called myopia. A person with myopia can see nearby objects clearly. Myopia is caused due to: High converging power of the lens.
3:Multiple reflection of light is the reflection of light back and forth several times between reflecting surfaces. If a reflected light ray is reflected again on being incident on another surface, it is termed multiple reflections. ... In a Kaleidoscope, beautiful patterns are formed due to multiple reflections.
4:The number of images formed by two adjacent plane mirrors depends on the angle between the mirror. If (in degrees) is angle between the plane mirrors then number of images are given by, n = 360 θ − 1.
5:Astigmatism (uh-STIG-muh-tiz-um) is a common and generally treatable imperfection in the curvature of your eye that causes blurred distance and near vision. Astigmatism occurs when either the front surface of your eye (cornea) or the lens, inside your eye, has mismatched curves.
6:It is known as the upright image because the image is erect and is exactly same as the object.
Answer:-
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Ans 1:- Diffused or irregular reflection occurs when we are reading a newspaper.
Ans 2:- Hypermetropia or long sightedness (Inability) are the names of the defect the eye is suffering from, when we cannot see a nearby object clearly.
Ans 3:- A phenomena of obtaining many images by employing two or more mirrors is called multiple reflection.
Ans 4:- The number of images formed by two adjacentmplane mirrors depends on the angle between the mirror. If two mirrors are inclined at an angle θ to each other then N (no. of images) = 360/θ-1.
Ans 5:- It is known as cylindrical power; the eye cannot focus on vertical and horizontal lines properly is called astigmatism.
Ans 6:- The mirror image is known as upright image because it forms an erect image.
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