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प्रश्न
State the two laws of reflection of light.
उत्तर
Laws of reflection:
- The incident ray, the reflected ray and the normal ray at the point of incidence, lie in the same plane.
- The angle of incidence i is equal to the angle of reflection r i.e. ∠i = ∠r
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संबंधित प्रश्न
Name the mirror which forms an erect, virtual and enlarged image of an object. What is the position of object relative to the mirror?
What is a real image? Name the mirror which can be used to obtain the real image of an object. What should be the position of the object relative to the mirror?
Give two characteristics of the virtual image formed by a convex lens.
State the changes in the position, size and nature of the image when the object is brought from infinity up to the convex lens. Illustrate your answer by drawing ray diagrams.
A plane mirror produces a ______image.
Say TRUE or FALSE
A plane mirror is opaque
A person is looking at the image of a tree in a mirror placed 3.5 m in front of him. Given that the tree is at 0.5 m behind his eyes. Find the distance between the image of the tree and his eyes. What are needed to see an object?
The image which can be obtained on a screen is called ______.
Assertion (A): Virtual objects can’t be seen by the human eye.
Reason (R): Virtual image is formed by converging rays.
A real image is inverted and can be caught on the screen.
