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3a. List any four properties of a wave. (2 marks)

b. State the two laws of reflection. (5 marks)

c. List any three characteristics of an image formed by a plane mirror. (3 marks)



Answer :

GinnyAnswer

Final answer:

This answer explores the properties of waves, laws of reflection, and characteristics of images in mirrors.


Explanation:

Properties of Waves:

  1. Amplitude: The height of a wave measured from its equilibrium position.
  2. Frequency: The number of complete waves that pass a point in a given time.
  3. Wavelength: The distance between two consecutive points in a wave cycle.
  4. Speed: The rate at which a wave travels through a medium.

Laws of Reflection:

1. The angle of incidence is equal to the angle of reflection.

2. The incident ray, reflected ray, and the normal at the point of incidence all lie on the same plane.

Characteristics of Image Formed by Plane Mirror:

  • Virtual: Formed behind the mirror.
  • Erect: Image is upright.
  • Same size: Image size is equal to the object size.

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