What is the difference between reflection and refraction? Class 8th?
Reflection and refraction are two phenomena that involve the bending of light as it interacts with different surfaces or mediums. Let's explore the differences between reflection and refraction in detail:
- Reflection:
Reflection occurs when light bounces off a surface, such as a mirror or water. The angle of incidence (the angle at which light hits the surface) is equal to the angle of reflection (the angle at which light bounces off the surface). This means that the light ray reflects back at the same angle it came in.
- Refraction:
Refraction, on the other hand, occurs when light passes through a medium with a different density, causing it to change direction. The speed of light changes as it moves from one medium to another, leading to a change in direction. This bending of light is what causes objects to appear distorted when viewed through water or glass.
- Key Differences:
1. Angle of Incidence: In reflection, the angle of incidence is equal to the angle of reflection, while in refraction, the angle of incidence and the angle of refraction are different.
2. Medium: Reflection occurs when light interacts with a surface, while refraction occurs when light passes through different mediums.
3. Speed of Light: In reflection, the speed of light remains the same, while in refraction, the speed of light changes as it moves through different mediums.
4. Direction: In reflection, light reflects back in the same direction, while in refraction, light changes direction as it passes through a medium with a different density.
In conclusion, reflection and refraction are both important phenomena that help us understand how light behaves. While reflection involves the bouncing of light off a surface, refraction involves the bending of light as it passes through different mediums.
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