Mark the following statements about lenses as true or false. ___ a. Incident par
ID: 1756794 • Letter: M
Question
Mark the following statements about lenses as true or false.___ a. Incident parallel light rays converge if thelens' focal length is negative. ___ b. If the path of converging light rays is tracedbackward, the rays appear to coe from a point from a point calledthe focal point. ___ c. A double convex lens has a negative focallength. ___ d. The focal length of a lens is alwayspositive.
___ a. Incident parallel light rays converge if thelens' focal length is negative. ___ b. If the path of converging light rays is tracedbackward, the rays appear to coe from a point from a point calledthe focal point. ___ c. A double convex lens has a negative focallength. ___ d. The focal length of a lens is alwayspositive.
Explanation / Answer
(a)
True
(b)
False
(c)
False
(d)
False Since Focal length of convex lens is Positive and for a concave lens is negative.
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