Assertion : If a point object is placed on the principal axis in front of a converginglens made up of two different materials the number of images formed by lens will be two .
Reason : Images formed by convergign lens are always virtual.
(1) both a and r are true and r is crct of a
(2) both a and r are crct but r is not crct of a
(3) a is true , r is false
(4) r is true a is false