Question

how can we see a book on table? explain with the help of ray diagram​

Answer 1

Answer:

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Answer 2

When their is a source of light we can see the book and when a ray of light reflect to our eyes then we can see the book.जब प्रकाश हमारी आँखों को परावर्तित करता है तब हम पुस्तक को देख सकते हैं.

But when their is no source of light then we can't see the book .

In absolute darkness we will not be able to see the book because our retina has a blind spot which will not interact with darkness.