A measuring apparatus is provided including a holding unit holding an object, an acoustic detecting unit including at least one detector which receives, via the holding unit, an acoustic wave generated from the object to which light is irradiated and converts the acoustic wave into an electrical signal, and a processor which generates image data of the object by using the electrical signal based on the acoustic wave received by the acoustic detecting unit at first and second measurement locations, wherein the acoustic detecting unit is arranged so as to form an overlapped area that is thicker than the object in a normal direction of an interface between the holding unit and the object as a result of the effective receiving areas of the detector in the first and second measurement locations overlapping in the object.
