Advertisements
Advertisements
प्रश्न
Describe an activity to show that the incident ray, the reflected ray and the normal at the point of incidence lie in the same plane.
उत्तर
Place a plane mirror on the table. Take a paper sheet and make a small hole in its centre. Make sure that the light in the room is not bright. Hold the sheet normal to the table. Take another sheet and place it on the table in contact with the vertical mirror. Draw a normal line on the second sheet from the mirror. Now, light a torch on the mirror through the small hole such that the ray of light falls on the normal at the bottom of the mirror. When the ray from this hole is incident on the mirror, it gets reflected in a certain direction. You can easily observe the incident ray, the reflected ray and the normal to the mirror at the point of incidence on the sheet placed on the table. This shows that the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
APPEARS IN
संबंधित प्रश्न
If you touch your ______ ear with your right hand in front of a plane mirror, it will be seen in the mirror that your right ear is touched with your ______.
State the two laws of reflection of light.
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give a reason to your answer.
The laws of reflection hold good for
The incident ray, the ______ ray, and the ______ at the point of incidence, all lie in the same plane.
Why do we need a shiny surface for reflection?
How should a ray of light be incident on a rectangular glass slab so that it comes out from the opposite side of the slab without being displaced?
Higher-Order Thinking Skills:
Are the laws of reflection true in the case of irregular reflection?
Which of the following is a non-mechanical wave?