Answer:
Mirrors are good for seeing objects because they reflect light, allowing us to see an image of the object. When light hits a smooth surface, such as a mirror, it reflects at the same angle as it hits the surface, which creates a clear and accurate image of the object. Mirrors are used in many applications, such as in telescopes, microscopes, and in cars as rear-view mirrors, among others.
Acoustic panels are used in concert halls to improve the quality of sound. The panels are designed to absorb sound waves and reduce echoes, which can improve the clarity and richness of the sound. This is important in concert halls where the goal is to provide an immersive and enjoyable experience for the audience. Without acoustic panels, the sound waves would bounce off the walls and ceiling, creating a chaotic mix of sounds that can make it difficult for the audience to appreciate the music. Acoustic panels come in different shapes and sizes and are often strategically placed to optimize the sound quality in the hall.