Advertisements
Advertisements
प्रश्न
State the two laws of reflection of light.
Advertisements
उत्तर
The two laws of reflection can be stated as follows:
- The angle of incidence is equal to the angle of reflection.
- The incident ray, the reflected ray, and the normal to the mirror, all lie in the same plane.
APPEARS IN
संबंधित 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.
A person 1 m in front of a plane mirror seems to be ______ m away from his image.
What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give a reason to your answer.
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 incident angle of a ray of light is 30°. The angle between the incident ray and the reflected ray is ______.
We can see things around us only when the light reflected by them reaches our eyes.
A safety vest helps to keep the workers who are working by the roadside safely. This is especially so during the night. Why?
If all objects around us were to reflect light in a regular way, what problem might we face?
