A Photograph || Transience Of Life

Pointing to a man in a photograph a woman said, "He is the only son of my mohter's father." How is the woman related to the man in the photograph ?

On an X -ray diffraction photograph, the intensity of the spots depends on the

Looking at a photograph a person said "I have no brother or sister but that man's father is my father's son". At whose photograph was the person looking at ?

Pointing to a photograph, a person tells his friend, 'She is the granddaughter of the elder brother of my father'. How is the girl in the photograph related to this man?