An X-rays Tube Produces A Continuous Spectrum Of Radiation With Its Short Wavelength End At 0.45 Å. What Is The Maximum Energy Of A Photon In The Radiation? What Is The Order Of Accelerating Voltage (for Electrons) Required In Such A Tube?       

The binding energy of the innermost electron in tungsten is 40 keV. To produce characteristics X-rays using a tungsten target in an X-ray tube, the accelerating voltage should be greater than 

X-rays of wavelength  are incident normally on a crystal and the second order reflection on diffraction from the crystal observed at an angle of 45^o. The lattice constant of the crystal is 

The frequency of  line of a source of atomic number Z is proportional to

A direct X-ray photograph of the intestines is not generally taken by the radiologists because :

X-rays which can penetrate through longer distance in substances are called.

The target in an X-rays tube should be a:

The maximum frequency of the X-rays produced in an X-ray tube

Which one of the following parameters of the emitted X-rays increases when the potential difference between the electrodes of an X-ray tube is increased?  

Calculate the energy of a photon, in electron-volt (eV) and in watt-hour (W h), of wavelength 6600 Å. 

In an accelerator experiment on high-energy collisions of the electrons with positrons, a certain event is interpreted as the annihilation of an electron-positron pair of total energy 10.2 BeV into two -rays of equal energy. Find the wavelength associated with each -ray.