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
For a concave lens, when the object is at a distance equal to the focal length of the lens, the image is formed at :
- optical centre
- second focus
- first focus
- mid point between the optical centre and second focus of the lens
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?