Laws of Reflection

What does the first law of reflection state?

a) The angle of incidence is greater than the angle of reflection.
b) The angle of incidence is less than the angle of reflection.
c) The angle of incidence is equal to the angle of reflection.
d) The angle of incidence is perpendicular to the angle of reflection.

According to the second law of reflection, where do the incident ray, the reflected ray, and the normal lie?

a) They lie in different planes.
b) They lie in the same plane.
c) They intersect at different angles.
d) They are parallel to each other.

What is the normal in the context of reflection?

a) A line perpendicular to the mirror surface at the point of incidence.
b) A line parallel to the mirror surface.
c) The reflected ray.
d) The incident ray.

If the angle of incidence is 30 degrees, what is the angle of reflection according to the first law of reflection?

a) 30 degrees
b) 60 degrees
c) 0 degrees
d) 90 degrees

In a ray diagram, how is the angle of incidence measured?

a) Between the incident ray and the reflected ray.
b) Between the incident ray and the mirror surface.
c) Between the incident ray and the normal.
d) Between the reflected ray and the mirror surface.

What must be true for the second law of reflection to hold?

a) The surface must be curved.
b) The rays and normal must lie in the same plane.
c) The incident ray must be parallel to the mirror.
d) The reflected ray must be perpendicular to the incident ray.

If an incident ray strikes a plane mirror at an angle of 45 degrees to the normal, what will be the angle between the incident ray and the reflected ray?

a) 45 degrees
b) 90 degrees
c) 135 degrees
d) 180 degrees

Which of the following is NOT a law of reflection?

a) The angle of incidence equals the angle of reflection.
b) The incident ray, the reflected ray, and the normal lie in the same plane.
c) The reflected ray is parallel to the incident ray.
d) The angle of reflection is measured from the normal to the reflected ray.

What happens to the angle of reflection if the angle of incidence increases?

a) It decreases.
b) It remains the same.
c) It also increases.
d) It becomes zero.

Which of the following best describes the relationship between the incident ray, the reflected ray, and the normal at the point of incidence?

a) They form a triangle.
b) They are all parallel.
c) They all lie on the same plane.
d) They intersect at different angles.

Laws of Reflection

sumayyah June 21, 2024

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