32. Study the diagram given below carefully and answer the following question
Questions: (1) Due to which phenomenon does the path of a ray of light get deviated ?
(2) Name the device x.
(3) What is point A called ?
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Answer:
a. refraction of light
b.convex lens
c.focus
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After studying the diagram given we can conclude that:
1. The phenomenon due to which the path of a ray of light gets deviated is known as refraction of light.
Refraction of light: It is the change in direction of a ray of light passing from one medium to another or from a gradual change in the medium.
2. The device X is a convex lens.
Convex lens: It is a converging lens, which causes a parallel beam of light rays that pass through it, to converge at a point.
3. Point A is called the principal focus or simply the focus os the lens.
Focus: It is the point where all the light rays meet or are assumed to meet in a mirror or lens.
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