How is water heater made with the help of a concave mirror ?
Solution:
The concave mirror is known as converging mirror, as when the parallel light rays falls on it, it converges to a single point (focus).
Now sunrays coming from the infinite, meet at focus, and that point gets heated up, this concept is used to make water heater, where the heat is used to increase the temperature of water.
The concave mirror is known as converging mirror, as when the parallel light rays falls on it, it converges to a single point (focus).
Now sunrays coming from the infinite, meet at focus, and that point gets heated up, this concept is used to make water heater, where the heat is used to increase the temperature of water.