1) 1. In the experiment you described, the line ON drawn at point O is called the....... a) A. Incident ray b) B. Mirror surface c) C. Normal d) D. Angle of reflection 2) 2.The angle of incidence in the setup is ∠i. According to the law of reflection, the angle of reflection ∠r is: a) A. Twice the angle of incidence b) B. Equal to the angle of incidence c) C. Half the angle of incidence d) D. Complementary to the angle of incidence 3) 3.When you look at the images of pins P and Q in a plane mirror, those images are: a) A. Real and formed in front of the mirror b) B. Virtual and formed behind the mirror c) C. Real and formed behind the mirror d) D. Virtual and formed on the mirror surface 4) 4.If the object (pin P) is 10 cm in front of the plane mirror, the image distance (distance of image behind mirror) will be: a) A. 5 cm b) B. 10 cm c) C. 20 cm d) D. Cannot be determined 5) 5.Why are pins P and Q placed on one side of the normal and pins R and S fixed on the other side during the experiment? a) A. To ensure the reflected ray passes through R and S (to locate reflected ray) b) B. To make the image real c) C. To measure mirror thickness d) D. To change the refractive index 6) 6.When you remove the mirror and join R and S, the intersection point O of RS with the mirror line M₁M₂ gives: a) A. The mid-point of the mirror only b) B. The point where the normal meets the mirror (the point of incidence) c) C. The center of curvature of mirror d) D. The focal point of the mirror 7) Which statement about the image formed by a plane mirror is correct? a) A. Image is inverted vertically but the same size b) B. Image is erect, virtual, same size and laterally inverted c) C. Image is real, inverted and smaller d) D. Image is erect, virtual and magnified

JKC Experiment 14 Study of Reflection of Light from a Plane Mirror

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