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CBSE Class 9 Answered

Place an object on the table.Look at the object through the transparent glass slab.You will observe that it will appear closer to you.Draw a ray diagram to show the passage of light ray in this situation.
Asked by md775016 | 09 Sep, 2017, 02:48: PM
answered-by-expert Expert Answer
1) The object is placed on the table. The rays from the object are incident on the glass slab. These rays get refracted towards the normal.
 
 
2) The rays then travel inside the slab and get refracted again. This time they are refracted away from the normal. But, the emergent ray is parallel to the incident ray.
 
3) Now, if we trace the path of the emergent ray back, then they meet at point O' which is closer to the observer than O.
Answered by Romal Bhansali | 11 Sep, 2017, 05:48: PM

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