Advertisements
Advertisements
Question
With the help of a diagram, state the laws of reflection
Solution
Laws of reflection
- The angle of incidence is always equal to the angle of reflection li =l*
- The incident ray, the reflected ray and the normal at the point of incidence lie on the same plane.
APPEARS IN
RELATED QUESTIONS
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.
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 ______.
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?
State the two laws of reflection of light.
A ______ reflection helps us to see the object
The incident angle of a ray of light is 30°. The angle between the incident ray and the reflected ray is ______.
Why do we need a shiny surface for reflection?
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?
If the angle of incidence i = 0, the angle of reflection r = ______.