Reflection of light is the phenomenon in which light rays return back into the same medium after striking a smooth or polished surface.
A surface from which light is reflected is called a reflecting surface.
The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane.
The angle of incidence is equal to the angle of reflection.
∠i = ∠r
Q1. Reflection of light is the phenomenon in which: A) Light bends B) Light gets absorbed C) Light returns to the same medium D) Light passes through medium Answer: C Q2. The angle between incident ray and normal is called: A) Angle of reflection B) Angle of refraction C) Angle of incidence D) Angle of deviation Answer: C Q3. According to the laws of reflection: A) ∠i > ∠r B) ∠i < ∠r C) ∠i = ∠r D) ∠i + ∠r = 90° Answer: C Q4. The incident ray, reflected ray and normal lie in: A) Different planes B) Same plane C) Parallel planes D) No plane Answer: B Q5. Which of the following shows regular reflection? A) Rough wall B) Paper C) Mirror D) Cloth Answer: C Q6. Reflection from a rough surface is called: A) Regular reflection B) Specular reflection C) Irregular reflection D) Total internal reflection Answer: C Q7. Normal is drawn: A) Along the surface B) Parallel to surface C) Perpendicular to surface D) At 45° to surface Answer: C Q8. Which law states ∠i = ∠r? A) First law of reflection B) Second law of reflection C) Snell’s law D) Law of refraction Answer: B
Return of light into the same medium after striking a surface.
MCQs are frequently asked on laws of reflection, definitions and identification of angles.
