What does the law of reflection state about the angle of incidence?

What does the law of reflection state about the angle of incidence?

• A. It is always greater than the angle of reflection
• B. It is equal to the angle of reflection
• C. It is always less than the angle of reflection
• D. It bears no relation to the angle of reflection

Answer: (B)

The law of reflection states that the angle of incidence is equal to the angle of reflection. This fundamental principle of optics indicates that when a light ray strikes a reflective surface, the angle at which it comes in (the angle of incidence) and the angle at which it leaves (the angle of reflection) are measured from a normal line, which is an imaginary line perpendicular to the surface at the point of incidence. This equality means that if a light ray hits a mirror at a 30-degree angle from the normal, it will reflect off the mirror at the same 30-degree angle in the opposite direction. This principle is essential for understanding various phenomena in optics, such as the behavior of mirrors and the basic mechanics of reflection.

The law of reflection states that the angle of incidence is equal to the angle of reflection. This fundamental principle of optics indicates that when a light ray strikes a reflective surface, the angle at which it comes in (the angle of incidence) and the angle at which it leaves (the angle of reflection) are measured from a normal line, which is an imaginary line perpendicular to the surface at the point of incidence. This equality means that if a light ray hits a mirror at a 30-degree angle from the normal, it will reflect off the mirror at the same 30-degree angle in the opposite direction. This principle is essential for understanding various phenomena in optics, such as the behavior of mirrors and the basic mechanics of reflection.