1. Speed of light in air is _____
2. Clear water and glass are examples of ______ objects
3. A beam of light is made up of _____ rays
4. Define rectileanear propagation of light .
5. How do we see non luminous objects ?
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1. Speed of light in air is _____
2. Clear water and glass are examples of ______ objects
3. A beam of light is made up of _____ rays
4. Define rectileanear propagation of light .
5. How do we see non luminous objects ?
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answer
1. 300,000
2. transparent objects
3. hypothetical construction
4. rectilinear propagon
5. We know that a non luminous object is one that not emit its own light although it can still reflected from the object towards our eyes