why does the ray of light change its direction or bends as it moves frm one medium to another why doesn't it continue on the same path ?
Answer:
It due to because light is refracted when it pass from one medium to another medium, and it depends on an angle and its speed. Light rays bent in one direction if the material which one that light ray enters is denser and in the other direction if the material is less dense. Reason behind this concept different wavelengths of light travel through a medium at different speeds, the amount of bending is different for different wavelengths.
It due to because light is refracted when it pass from one medium to another medium, and it depends on an angle and its speed. Light rays bent in one direction if the material which one that light ray enters is denser and in the other direction if the material is less dense. Reason behind this concept different wavelengths of light travel through a medium at different speeds, the amount of bending is different for different wavelengths.