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L2 : Reflection of Light - Light Reflection & Refraction, Science, Class 10 Video Lecture

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FAQs on L2 : Reflection of Light - Light Reflection & Refraction, Science, Class 10 Video Lecture

1. What is light reflection?
Ans. Light reflection is the process by which light waves bounce off a surface. When light strikes a smooth surface, such as a mirror, it reflects at the same angle it hit the surface. This phenomenon allows us to see objects and their images in mirrors.
2. What is the difference between regular reflection and diffuse reflection?
Ans. Regular reflection occurs when light waves strike a smooth and polished surface, such as a mirror, and reflect at the same angle. On the other hand, diffuse reflection occurs when light waves strike a rough or uneven surface, causing the light to scatter in different directions.
3. How does the angle of incidence affect the angle of reflection?
Ans. According to the law of reflection, the angle of incidence is equal to the angle of reflection. This means that if light strikes a surface at a certain angle, it will bounce off the surface at the same angle but in the opposite direction. The angle between the incident ray and the normal line (a line perpendicular to the surface) is called the angle of incidence.
4. What is the difference between reflection and refraction?
Ans. Reflection is the bouncing back of light waves when they hit a surface, while refraction is the bending of light waves as they pass from one medium to another. In reflection, light does not change its speed or direction, whereas in refraction, light changes both speed and direction.
5. How does light reflection help us see objects?
Ans. Light reflection plays a crucial role in our ability to see objects. When light reflects off an object and enters our eyes, it allows us to perceive the object's shape, color, and texture. Without reflection, light would simply pass through objects, making them invisible to our eyes.
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