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प्रश्न
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उत्तर १
Reflection obeys the following two laws
(a). The incident ray, the reflected ray, and the normal at the point of incidence, all lie in the same plane.
(b). The angle of incidence and the angle of reflection are always equal.
उत्तर २
- The incident ray, the reflected ray, and the normal at the point of incidence, all lie in the same plane.
- The angle of incidence and the angle of reflection are always equal.
संबंधित प्रश्न
A person 1 m in front of a plane mirror seems to be ______ m away from his image.
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?
Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
State the two laws of reflection of light.
State the laws of reflection and describe an experiment to verify them.
According to the law of reflection :
State the laws of reflection.
Reflection of light from rough surface is called ______ reflection
Look at the figure. Can the image of the child in it be obtained on a screen?
The incident angle of a ray of light is 30°. The angle between the incident ray and the reflected ray is ______.
The bouncing back of light from a surface is called ______.
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?
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?
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?
