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प्रश्न
What can you see in a completely dark room? If you switch on an electric bulb in this dark room as a light source, explain how you could now see:
(a) the electric bulb
(b) a piece of white paper
टिप्पणी लिखिए
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उत्तर
We cannot see anything in a dark room as there is no light present.
(a) We see the electric bulb because it produces light that reaches our eyes directly.
(b) We see a piece of white paper due to the diffused reflection of light from the surface of the paper.
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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Reflection of Light - Exercise 1 [पृष्ठ २२]
