Reflection Of Light Exercise 7a
Please Select
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 :
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Q4 With the help of diagrams, explain the difference between regular and irregular reflection
Solution :
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Q5 Differentiate between the reflection of light from a plane mirror and that from a plain sheet of paper.
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Q6 State the two laws of reflection of light
Solution :
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Q7 State the laws of reflection and describe an experiment to verify them.
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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
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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.
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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 :
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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
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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
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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
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Q14 Differentiate between a real and a virtual image
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Q15 What is meant by a lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram
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Q16 The letters on the front of an ambulance are written laterally inverted like ƎƆИA⅃UꓭMA.
Give reason.
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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 :
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