The Maximum Frequency Of The X-rays Produced In An X-ray Tube

X-rays are incident normally on a crystal of lattice constant 0.6 nm. The first order reflection on diffraction from the crystal occurs at an angle of 30^o. What is the wavelength of X-rays used? 

The wavelength of  line from an element of atomic number 41 is . Then the wavelength of  line of an element of atomic number 21 is 

An X-rays photon of wavelength  and frequency v collides with an electron and bounces off. If  are respectively the wavelength and frequency of the scattered photon, then

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:

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?