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प्रश्न
Name the mirror which always forms an erect and virtual image. What is the size of the image as compared to that of the object?
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उत्तर
It is CONVEX MIRROR. The size of the image is smaller than the size of the object, but when the object is at infinity the size of image is POINT size.
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संबंधित प्रश्न
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
Define the following terms :
Incident ray, Refracted ray, Angle of incidence, Angle of refraction.
A ray of light falls normally on a glass slab. What is the angle of incidence?
What is mirage? Give a reason for its formation?
Give two characteristics of the virtual image formed by a convex lens.
Say TRUE or FALSE
The image of right hand in a plane mirror looks like a left hand
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?
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.
