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प्रश्न
State the two laws of reflection of light.
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उत्तर
Laws of reflection:
- The angle of incidence is equal to the angle of reflection.
- The incident ray, the reflected ray and the normal at the point of incidence, lie in the same plane.
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संबंधित प्रश्न
State the laws of reflection.
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.
Boojho stands at A just on the side of a plane mirror as shown in figure. Can he see himself in the mirror? Also can he see the image of objects situated at P, Q and R?
- Find out the position of the image of an object situated at A in the plane mirror.
- Can Paheli at B see this image?
- Can Boojho at C see this image?
- When Paheli moves from B to C, where does the image of A move?
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give a reason to your answer.
With the help of a diagram, state the laws of reflection
A student does the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He can get a correct measure of the angle of incidence and the angle of emergence by following the labelling indicated in figure.
The bouncing back of light from a surface is called ______.
If all objects around us were to reflect light in a regular way, what problem might we face?
