PHYSICS - REFLECTION AND REFRACTION

Reflection Worksheet

  • Focuses on the principles of light reflection and angles
  • Covers the concept of normal lines in reflection
  • Includes practical angle measurement scenarios
  • Designed for Grade 9 Physics students

Here are the first 3 questions. Click “View all questions” to see the complete assessment.

Q1.

Which statement correctly defines the normal at the point where a ray meets a reflecting surface?

  1. A) It is the path followed by the reflected ray after leaving the surface.
  2. B) It is an imaginary line parallel to the reflecting surface at that point.
  3. C) It is an imaginary line perpendicular to the reflecting surface at that point.
  4. D) It is the path followed by the incident ray before reaching the surface.

Q2.

Between which two lines is the angle of incidence measured?

  1. A) The reflected ray and the normal
  2. B) The reflected ray and the reflecting surface
  3. C) The incident ray and the normal
  4. D) The incident ray and the reflecting surface

Q3.

An incident ray makes an angle of 28^(°) with a plane mirror. What is its angle of incidence?

  1. A) 62^(°)
  2. B) 56^(°)
  3. C) 28^(°)
  4. D) 90^(°)

Q4.

At a plane mirror, the angle between an incident ray and the normal is 41^(°). Which statement correctly describes the angles?

  1. A) The angle of incidence is 41^(°), and the angle of reflection is 41^(°).
  2. B) The angle of incidence is 49^(°), and the angle of reflection is 41^(°).
  3. C) The angle of incidence is 41^(°), and the angle of reflection is 49^(°).
  4. D) The angle of incidence is 49^(°), and the angle of reflection is 49^(°).

Q5.

A reflected ray forms an angle of 52^(°) with the normal. What is the name of this measured angle?

  1. A) Angle between the ray and the surface
  2. B) Perpendicular angle
  3. C) Angle of incidence
  4. D) Angle of reflection

Q6.

The smaller angle between an incident ray and its reflected ray is 96^(°). The normal divides this angle into two equal parts. What is the angle of incidence?

  1. A) 42^(°)
  2. B) 96^(°)
  3. C) 84^(°)
  4. D) 48^(°)

Q7.

A light ray travels towards a plane mirror exactly along the normal. Which statement is correct?

  1. A) Both the angle of incidence and the angle of reflection are 0^(°).
  2. B) The angle of incidence is 90^(°), but the angle of reflection is 0^(°).
  3. C) Both the angle of incidence and the angle of reflection are 90^(°).
  4. D) The angle of incidence is 0^(°), but the angle of reflection is 90^(°).

Q8.

In the figure, what does the marked angle x represent?

Diagram for question 8: In the figure, what does the marked angle x represent?
  1. A) The angle of incidence
  2. B) The angle between the reflected ray and the mirror
  3. C) The angle between the normal and the mirror
  4. D) The angle of reflection

Q9.

The figure shows an angle of 35^(°) between the reflected ray and the mirror. What is the angle of reflection?

Diagram for question 9: The figure shows an angle of 35^(°) between the reflected ray and the mirror. What is the angle of reflection?
  1. A) 70^(°)
  2. B) 35^(°)
  3. C) 55^(°)
  4. D) 90^(°)

Q10.

Which labelled construction line in the figure is the normal to the mirror at point O?

Diagram for question 10: Which labelled construction line in the figure is the normal to the mirror at point O?
  1. A) Line A
  2. B) Line C
  3. C) Line D
  4. D) Line B

What this assessment covers

Concepts tested

  • Definition and role of the normal in reflection
  • Measurement of angles of incidence and reflection
  • Understanding of incident and reflected rays
  • Concept of angles formed with plane mirrors
  • Identification of construction lines in diagrams

Question Mix

  • Medium questions included

Skills you build

  • Identify and define the normal line in reflection scenarios
  • Measure and calculate angles of incidence and reflection
  • Interpret and analyze diagrams involving light rays
  • Apply the laws of reflection to solve problems
  • Recognize and label components in optical diagrams

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