Converging lenses can form both real or virtual images (a) true (b) false Diverg
ID: 2077017 • Letter: C
Question
Converging lenses can form both real or virtual images (a) true (b) false Diverging lenses can form only virtual images (a) true (b) false Incident parallel light rays converge if the lens's focal length is negative. (a) true (b) false (c) it depends on certain other factors If the path of converging light rays is traced backwards, the rays appear to come from a point called the focal point. (a) True (b) false (c) it depends on certain other factors With a virtual image light does not actually pass through the points at which the image is formed. (a) true (b) false If an object is very, very far away from a converging lens, then which of the statement below is true: your object distance, q your image distance and f your focal length? (a) p = q (b) p = 1/2 q (c) p = f (d) q = f (e) 2p = f Fill out the table that follows by describing the type lenses above as either biconvex, converging, etc, and for the sign convention (+-).Explanation / Answer
20] True. Converging lens can form both real and virtual images. Virtual image is formed when the object distance is less than the focal length.
21] True. Diverging lens can form only virtual images.
22] False. Incident parallel rays converge for a converging lens which has a positive focal length.
23] False. If the path of converging light rays from a lens is traced backwards, it appears to come from infinity.
24] True. Virtual image is the apparent image produced where the light actually does not pass through the points.
25] 1/f = 1/q + 1/p
p = infinity
therefore, f = p
focal length = image distance. [c].
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