Physics
A lens forms an inverted image of an object.
(a) Name the kind of lens.
(b) State the nature of the image whether real or virtual?
Refraction Lens
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Answer
(a) It is a convex lens as a convex lens forms an inverted image when the object is placed anywhere from infinity to F1.
(b) The image formed by a convex lens is real.
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Related Questions
A blue light beam forms an image of an object using a convex lens. If the blue light is replaced by red light, how will the image change?
- Image will shift closer to the lens and become smaller.
- Image will shift farther from the lens and become larger.
- The position of the image will not change, only its brightness changes.
- No change will be seen
Assertion (A): The focal length of a lens does not change when red light is replaced by blue light.
Reason (R): The focal length of a lens depends on the refractive index of material of lens.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
(a) Name the lens which always forms an erect and virtual image.
(b) State whether the image in part (a) is magnified or diminished?
Can a concave lens form an image of size two times that of the object? Give reason?