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प्रश्न
The laws of reflection hold true for ______.
पर्याय
plane mirrors only
concave mirrors only
convex mirrors only
all reflecting surfaces
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उत्तर
The laws of reflection hold true for all reflecting surfaces.
Explanation:
The laws of reflection are fundamental principles of optics that describe how light behaves when it hits a surface. These laws state:
- The angle of incidence is equal to the angle of reflection.
- The incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
संबंधित प्रश्न
With the help of a labelled ray-diagram, describe how a plane mirror forms an image of a point source of light placed in front of it. State the characteristics of the image formed in a plane mirror.
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
A ray of light travelling in air is incident on a rectangular glass block and emerges out into the air from the opposite face. Draw a labelled ray diagram to show the completer path of this ray of light. Mark the two points where the refraction of light takes place. What can you say about the final direction of ray of light?
A coin in a glass tumbler appears to rise as the glass tumbler is slowly filled with water. Name the phenomenon responsible for this effect.
With the help of a labelled diagram, explain why a tank full of water appears less deep than it actually is.
Show the lateral displacement of the ray on the diagram.
A vertical ray of light strikes the horizontal surface of some water:
What is the angle of refraction?
Write scientific reason.
The bottom of a pond appears raised.
Under what circumstances there won’t be any refraction of light when it enters from one medium to another?
