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Properties of Light Video Lecture | Science Class 5

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FAQs on Properties of Light Video Lecture - Science Class 5

1. What are the properties of light?
Ans. Light has various properties including reflection, refraction, dispersion, and polarization. Reflection is when light bounces off a surface, refraction is when light changes direction while passing through different mediums, dispersion is the separation of light into different colors, and polarization is the orientation of light waves.
2. How does light travel?
Ans. Light travels in straight lines called rays. It can travel through a vacuum and various mediums such as air, water, and glass. When light strikes a surface, it can be absorbed, reflected, or transmitted.
3. What is the speed of light?
Ans. The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s). This speed is considered to be the fastest speed possible in the universe.
4. How does light help us see objects?
Ans. Light reflects off objects and enters our eyes. Our eyes then interpret the light signals to create images in our brains, allowing us to see the objects around us.
5. What is the electromagnetic spectrum?
Ans. The electromagnetic spectrum is a range of all types of electromagnetic radiation, including visible light. It ranges from radio waves with low frequencies and long wavelengths to gamma rays with high frequencies and short wavelengths.
44 videos|204 docs|45 tests

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