Questions in Dual Nature of Radiation and Matter

Select	Question
	An X-ray machine has an accelerating potential difference of 25,000 volts. By calculation the shortest wavelength will be obtained as ($h = 6.62 \times {10^{ - 34}}$ J–sec; e = $1.6 \times {10^{ - 19}}$coulomb)
	For the production of X-rays of wavelength 0.1 Å the minimum potential difference will be
	Mosley measured the frequency (f) of the characteristic X-rays from many metals of different atomic number (Z) and represented his results by a relation known as Mosley's law. This law is (a, b are constants)
	Penetrating power of X-rays depends on
	The energy of a photon of characteristic X-rays from a Coolidge tube comes from
	An X-ray tube operates on 30 kV. What is the minimum wavelength emitted $(h = 6.6 \times {10^{ - 34}}$Js, $e = 1.6 \times {10^{ - 19}}$Coulomb, $c = 3 \times {10^8}$ms–1)
	The wavelength of the most energetic X–ray emitted when a metal target is bombarded by 100 KeV electrons is approximately
	An electron beam in an X-ray tube is accelerated through a potential difference of 50000 volts. These are then made to fall on a tungsten target. The shortest wavelength of the X-ray emitted by the tube is
	For harder X-rays
	When cathode rays strike a metal target of high melting point with very high velocity, then