Test: Reflection of Light - Class 10 MCQ

• Statement (i) is correct as per the Law of Reflection that states the angle of incidence is always equal to the angle of reflection.
• Statement (ii) is correct because the reflected ray is indeed the ray that bounces back after striking the surface.
• Statement (iii) is incorrect because the incident ray is the ray of light that falls on the surface, not the one that gets absorbed.
• Statement (iv) is correct as the normal is defined as a line perpendicular to the reflecting surface. Thus, the correct statements are (i), (ii) and (iv).

• Option A: (a) Incident Ray - The ray that bounces back from a surface This is incorrect. The incident ray is actually the ray of light that falls on a polished surface, not the one that bounces back.
• Option B: (b) Reflected Ray - The ray that falls on a polished surface This is incorrect. The reflected ray is the ray of light that bounces back from the polished surface, not the one that falls on it.
• Option C: (c) Normal - A line at a right angle to the reflecting surface This is correct. The normal is indeed a line that is perpendicular (at a right angle) to the reflecting surface at the point of incidence.
• Option D: (d) Beam of Light - A straight line that shows the direction of light This is incorrect. A beam of light is a bundle of light rays, whereas a straight line showing the direction of light is called a ray of light.

Therefore, the correctly matched pair is Option C: (c) Normal - A line at a right angle to the reflecting surface.

In a plane mirror, the image distance is equal to the object distance from the mirror. Therefore, if the object is 3 meters away from the mirror, the image will also appear 3 meters behind the mirror. 

When an object is placed in front of a plane mirror:
The image appears to be the same distance behind the mirror as the object is in front of it.
If the object is 5 cm in front of the mirror, the image will be 5 cm behind the mirror.
The total distance between the object and its image is the sum of these two distances.
Thus, the total distance is 5 cm (object to mirror) + 5 cm (mirror to image) = 10 cm.
Therefore, the correct answer is:
B: 10 cm