Help required on three please.
32d.German physicist who invented the first cathode ray tube.?R?U?
39ac.Moroccan dish of meat,spices and fruit such as prunes or apricots slowly cooked in a pot of the same name(either spelling) ?A?I?E.
54d.Physicst who wrote the law on the diffraction of X-rays by crystals. B?A?G. Thanks for any help.