Name a device based on the principle of reflection?
Solar cooker works on the principle of reflection...
>This can be explained as, light falling on its concave surface get converged on the stores food in order to cook it.
Name a device based on the principle of reflection?
Device based on the principle of reflection:
Reflection is the phenomenon in which light, sound, or any other type of wave is redirected back into the medium it came from. This principle is widely utilized in various devices to achieve specific functions. One such device is a mirror, which is based on the principle of reflection.
Mirror:
A mirror is a device that reflects light to form an image by utilizing the principle of reflection. It consists of a smooth and highly polished surface, typically made of glass coated with a thin layer of metal, such as aluminum or silver, on one side. Mirrors are commonly used in daily life, in various fields such as personal grooming, decorative purposes, scientific experiments, and even in optical instruments.
Working Principle:
When light falls on the smooth surface of a mirror, it undergoes reflection according to the laws of reflection. These laws state that the incident angle (angle between the incident light ray and the normal to the surface) is equal to the reflected angle (angle between the reflected light ray and the normal to the surface). This means that the angle at which light strikes the mirror is equal to the angle at which it bounces off.
Applications:
Mirrors find extensive applications in different domains due to their ability to reflect light accurately. Some of the key applications include:
1. Personal Grooming: Mirrors are widely used for personal grooming activities, such as applying makeup, shaving, and hairstyling.
2. Optical Instruments: In optical instruments like telescopes, microscopes, and cameras, mirrors are utilized to reflect and focus light, allowing for enhanced visualization and magnification.
3. Decorative Purposes: Mirrors are extensively used for decorative purposes in interior design, architecture, and artwork, as they can create an illusion of space and enhance the overall aesthetics of a room.
4. Automobile Rearview Mirrors: Rearview mirrors in vehicles are crucial for providing the driver with a clear view of the road behind, ensuring safety while driving.
5. Scientific Experiments: Mirrors play a significant role in various scientific experiments, such as laser experiments, optics research, and spectroscopy.
6. Signal Reflection: In telecommunications and optical fiber systems, mirrors are utilized to reflect and redirect signals, allowing for efficient transmission and reception.
In conclusion, mirrors are devices based on the principle of reflection. They effectively reflect light to form images and find numerous applications in daily life, scientific research, and technological advancements.
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.