Q1 What do you mean by reflection of light? Solution

Q2 State which surface of the plane mirror reflects most of the light incident on it: the front smooth surface or the back silvered surface Solution

Q3 Explain the following terms:

(a) Plane mirror
(b) Incident ray
(c) Reflected ray
(d) Angle of incidence and
(e) Angle of reflection Solution

Q4 With the help of diagrams, explain the difference between regular and irregular reflection Solution

Q5 Differentiate between the reflection of light from a plane mirror and that from a plain sheet of paper. Solution

Q6 State the two laws of reflection of light Solution

Q7 State the laws of reflection and describe an experiment to verify them. Solution

Q8 A light ray is incident normally on a plane mirror. (a) What is its angle of incidence? (b) What is the direction of the reflected ray? Show it on a diagram Solution

Q9 Draw a diagram to show the reflection of a ray of light by a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence, and the angle of reflection. Solution

Q10 The figure shows an incident ray AO and the normal ON on a plane mirror. The angle which the incident ray AO makes with the mirror is 30°.

(a)Find the angle of incidence.

(b)Draw the reflected ray and then find the angle between the incident and reflected rays.

Solution

Q11 The diagram shows a point object P in front of a plane mirror MM1. (a) Complete the diagram by taking two rays from point P to show the formation of its image. (b) In the diagram, mark the position of the eye to see the image. (c) Is the image formed real or virtual? Explain why Solution

Q12 The diagram below shows an object XY in front of a plane mirror MM1. Draw the diagram, path of two rays from each point X and Y of the object to show the formation of its image Solution

Q13 (a) Write three characteristics of the image formed by a plane mirror?

(b) How is the position of the image related to the position of the object Solution

Q14 Differentiate between a real and a virtual image Solution

Q15 What is meant by a lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram Solution

Q16 The letters on the front of an ambulance are written laterally inverted like ƎƆИA⅃UꓭMA.

Give reason. Solution

Q17 Why is it difficult to read the image of the text of a page formed due to reflection by a plane mirror? Solution

Multiple Choice Questions

Q1 According to the law of reflection :

(a) i/r = Constant
(b) sin i/sin r = Constant
(c) i + r = Constant
(d) i = r Solution

Q2 The image formed by a plane mirror is :

(a) Erect and diminished
(b) Erect and enlarged
(c) Inverted and of the same size
(d) Erect and of the same size Solution

Q3 The image formed by a plane mirror is :

(a) Real
(b) Virtual
(c) Virtual with lateral inversion
(d) Real with lateral inversion Solution