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d)  microscope

             7.    The concave lens is also known as                                                         1

                     a)  converging lens
                     b)  diverging lens
                     c)  dispersing lens
                     d)  conducting lens

             8.    The nature of image formed by concave lens when object is placed far away                 1
                  from the lens is
                     a)  Real and inverted
                     b)  Real and erect
                     c)  Virtual and inverted
                     d)  Virtual and erect

             9.    Which of the following does not uses concave lens?                                        1
                     a)  Peephole
                     b)  Camera
                     c)  Microscope
                     d)  Flash lights

             10.   The lens which is thinner in the middle and thicker at edge is                            1
                     a)  Convex lens
                     b)  Concave lens
                     c)  Parabolic lens
                     d)  Bifocal lens
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