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Q: The laws of reflection hold true for which of the following mirror (s) ? (1) Concave mirror (2) Convex mirror (3) Plane mirror
  • A. Only 1 and 2
  • B. 1, 2 and 3
  • C. Only 2 and 3
  • D. Only 1 and 3
Correct Answer: Option B - The laws of refection include all mirrors whether it is a plane mirror, concave mirror, or convex mirror and also for all other reflecting surfaces which are not mirrors but act like one for example water, steel etc. The first Law of Reflection: The angle of incidence is equal to the angle of reflection. The second law of refection: The incident ray, reflected ray and normal lie in the same plane, and the incident ray and the reflected ray are one opposite ray.
B. The laws of refection include all mirrors whether it is a plane mirror, concave mirror, or convex mirror and also for all other reflecting surfaces which are not mirrors but act like one for example water, steel etc. The first Law of Reflection: The angle of incidence is equal to the angle of reflection. The second law of refection: The incident ray, reflected ray and normal lie in the same plane, and the incident ray and the reflected ray are one opposite ray.

Explanations:

The laws of refection include all mirrors whether it is a plane mirror, concave mirror, or convex mirror and also for all other reflecting surfaces which are not mirrors but act like one for example water, steel etc. The first Law of Reflection: The angle of incidence is equal to the angle of reflection. The second law of refection: The incident ray, reflected ray and normal lie in the same plane, and the incident ray and the reflected ray are one opposite ray.