Laws of Reflection
Physics ⇒ Light and Optics
Laws of Reflection starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Laws of Reflection.
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See sample questions for grade 9
Describe the difference between regular and diffuse reflection.
Describe what happens to the direction of a light ray when it strikes a smooth, plane mirror at an angle.
Describe what is meant by the term 'normal' in the context of reflection.
Explain why the image formed by a plane mirror appears to be the same distance behind the mirror as the object is in front of it.
Explain why the laws of reflection are important in designing periscopes.
Explain why you cannot see your reflection clearly in a rough wall.
A student shines a light ray at a mirror and measures the angle of incidence as 25°. What should the angle of reflection be according to the laws of reflection?
Which of the following best explains why you see your image in a calm lake but not in a rough sea? (1) Regular reflection occurs on a calm lake. (2) Diffuse reflection occurs on a rough sea. (3) Both (1) and (2). (4) Neither (1) nor (2).
Which of the following best describes the normal in the context of reflection? (1) A line parallel to the mirror. (2) A line perpendicular to the mirror at the point of incidence. (3) The path of the reflected ray. (4) The path of the incident ray.
Which of the following best explains why you see your image in a calm lake but not in a rough sea? (1) Regular reflection occurs on a calm lake. (2) Diffuse reflection occurs on a rough sea. (3) Both (1) and (2). (4) Neither (1) nor (2).
Which of the following is NOT a part of the laws of reflection? (1) The angle of incidence equals the angle of reflection. (2) The incident ray, reflected ray, and normal lie in the same plane. (3) The incident ray and reflected ray are always perpendicular. (4) The laws apply to all reflecting surfaces.
Which of the following is NOT a property of the image formed by a plane mirror? (1) It is virtual. (2) It is laterally inverted. (3) It is real. (4) It is the same size as the object.
Fill in the blank: The angle between the incident ray and the normal is called the angle of _______.
Fill in the blank: The angle between the reflected ray and the normal is called the angle of _______.
Fill in the blank: The angle of incidence is always equal to the angle of _______.
Fill in the blank: The angle of incidence is measured from the _______ to the incident ray.
True or False: The angle of reflection is measured from the reflected ray to the normal.
True or False: The image formed by a plane mirror is always virtual.
True or False: The image formed by a plane mirror is laterally inverted.
True or False: The laws of reflection apply only to plane mirrors.
