Statement l: Anode of Coolidge tube gets heated up at time of emission of X-rays.Statement II: The anode of Coolidge tube is made of a material of high melting point.

When fast moving electrons strike the atoms of the target, then most of their kinetic energy is used in increasing the thermal agitation of the atoms of the target and only a small part is radiated in the form of X-rays. So the temperature of the target rises.