Question

Which explanation is true about what happens to a ray of light when it strikes a mirror?

A. A light ray is transmitted toward a mirror at a certain angle. The light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray.

B. An incident ray strikes a mirror at an angle with a line perpendicular to the mirror. The light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line.

C. A reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. The light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line.

D. An incident ray strikes a mirror at an angle with a line parallel to the mirror. The light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line.

Thank you so much! :-D Please take the time to try and answer correctly.

Answer 1

For this, the correct option would be (D)

Answer 2

B.

Step-by-step explanation:

When a rays approaches a plane mirror it is called the incident ray. This incident ray when strikes the surface of the plane mirror gets reflected back and is known as the reflected ray. A line can be drawn perpendicular at he point of incidence on the mirror surface which is called the normal line.

And this normal line perpendicular to the plane mirror divides the angle between the the incident ray and the reflected ray in two equal halves which are known as angle of incidence and angle of reflection respectively.

Now reflection law says that the angle of incidence is equal to the angle of reflection and the ray gets reflected back on opposite to the normal line.

Thus option B is correct.