Mention five materials used to verify Snell's law in the laboratory
1. Glass Prism: A glass prism is often used to verify Snell's law. By measuring the angles of incidence and refraction, the refractive index can be determined, which can be compared to the theoretical value.
2. Water: Snell's law can also be verified using water as the medium. By using a transparent container with water, the angles of incidence and refraction can be measured, and the refractive index of water can be determined.
3. Acrylic: Transparent acrylic blocks or sheets can be used to verify Snell's law. Similar to glass and water, the angles of incidence and refraction can be measured, and the refractive index of acrylic can be determined.
4. Air: Though air has a refractive index very close to 1, it can still be used to verify Snell's law. Air can be used as the medium between two transparent materials, and the angles of incidence and refraction can be measured to verify the relationship between them.
5. Optical Fiber: Optical fiber can also be used to demonstrate Snell's law. By using a source of light and sending it through the fiber, the angle of incidence and refraction can be measured, and the fiber's refractive index can be calculated and compared to the expected value.
1. Glass Prism: One of the most common materials used to verify Snell's law is a glass prism. When light enters a prism, it bends and changes direction according to Snell's law.
2. Water Tank: A water tank can be used to verify Snell's law by observing the bending of light as it passes from one medium (such as air) into water. The change in the direction of light can be measured and compared to the predicted values from Snell's law.
3. Acrylic Block: An acrylic block is another material that can be used to verify Snell's law. By shining light at different angles onto the block and measuring the angle of refraction, one can confirm that the observed behavior follows the predictions of Snell's law.
4. Perspex block: Similar to an acrylic block, a perspex block can also be used to verify Snell's law. By measuring the angles of incidence and refraction, the validity of Snell's law can be confirmed.
5. Air-Water Interface: The interface between air and water can also be used to verify Snell's law. By measuring the angles of incidence and refraction when light passes from air to water, the relationship between the angles can be analyzed to ensure it follows Snell's law.