Reflection, Mirrors & The Eye

Explanation
When a ray of light strikes a surface and gets reflected, the angle at which it strikes the surface is called the angle of incidence, and the angle at which it reflects off the surface is called the angle of reflection. According to the law of reflection, the angle of incidence and the angle of reflection are always equal. This means that if the angle of incidence is, for example, 30 degrees, the angle of reflection will also be 30 degrees. Therefore, the statement is true.

Explanation
The statement is incorrect. There are actually three types of mirrors: flat, concave, and convex. Flat mirrors have a flat surface and reflect light without distorting the image. Concave mirrors have a curved inward surface and can focus light to create magnified or real images. Convex mirrors have a curved outward surface and can create smaller, virtual images. Therefore, the correct answer is false.

Explanation
The back side of a spoon is not an example of a concave mirror. A concave mirror is a mirror with a surface that curves inward, causing light rays to converge. The back side of a spoon, on the other hand, is usually convex, meaning it curves outward. Convex mirrors cause light rays to diverge, making objects appear smaller. Therefore, the correct answer is false.

Explanation
A convex mirror is a mirror that curves outward, causing the reflected image to appear smaller. It is commonly used in rear-view mirrors and security mirrors. However, a spoon does not have a curved surface like a convex mirror. It is a concave shape, curving inward. Therefore, the statement that the part that holds soup in a spoon is an example of a convex mirror is false.

Explanation
The statement is true because the ray that is in contact with the mirror is indeed called the "incidence ray." When light strikes a mirror, the incident ray is the ray of light that approaches the mirror and makes contact with its surface. This incident ray is important in understanding how light reflects off the mirror and forms an image.

Explanation
The statement is true because when a ray of light strikes a surface and bounces off, the resulting ray is called the "reflected ray." This is a basic concept in physics and optics, where the angle of incidence (the angle at which the ray strikes the surface) is equal to the angle of reflection (the angle at which the ray bounces off). The reflected ray is important in understanding how light behaves when it interacts with different surfaces and is used in various applications such as mirrors and reflective surfaces.