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7. How will you prove that the angle of incidence is equal to the angle of reflection.

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To experimentally demonstrate that the angle of incidence is equal to the angle of reflection, you can conduct a simple experiment using a smooth reflective surface, such as a plane mirror. Here's a step-by-step procedure: Materials: Plane mirror Light source (flashlight or laser pointer) Protractor Drawing...
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To experimentally demonstrate that the angle of incidence is equal to the angle of reflection, you can conduct a simple experiment using a smooth reflective surface, such as a plane mirror. Here's a step-by-step procedure:

Materials:

  1. Plane mirror
  2. Light source (flashlight or laser pointer)
  3. Protractor
  4. Drawing paper or surface

Procedure:

  1. Set up the plane mirror vertically on a table or wall.
  2. Place a sheet of drawing paper or any surface in front of the mirror.
  3. Shine a light (flashlight or laser) onto the mirror surface at a certain angle.
  4. Use a protractor to measure the angle of incidence. This is the angle between the incident light ray and an imaginary line perpendicular to the mirror at the point where the light strikes the mirror.
  5. Observe the reflected light on the paper and mark the direction of the reflected ray.
  6. Use the protractor to measure the angle of reflection. This is the angle between the reflected light ray and the same imaginary line perpendicular to the mirror.
  7. Compare the angles of incidence and reflection.

Observations: You should observe that the angle of incidence is equal to the angle of reflection, confirming the law of reflection.

This experiment demonstrates that, irrespective of the incident angle, the reflected angle is equal when light reflects off a smooth surface.

 
 
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