which rays can be used to create image formed by
a)convex lens. b) concave lens
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Image Formation by a Convex Lens
A ray of light travelling parallel to the principal axis, after refraction passes through the focus on the other side of the lens.
A lens refracts light and forms an image. A concave lens is thicker at the edges than it is in the middle. This causes rays of light to diverge. The light forms a virtual image that is right-side up and smaller than the object.
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a)
*A ray of light coming parallel to principal axes after passing through a convex lens passes through its focus
*A ray of light passing thought optical centre
* A ray of light coming from an object through the focus of a convex becomes parallel to it's principal axis
b)
*A concave lens gives only kind of images whatever may be the position of the object
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