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SIMILAR QUESTIONS

Q1

The energy in monochromatic X-rays of wavelength 1 Å is roughly equal to

Q2

What is the unit of Planck’s constant?

Q3

What are the dimensions of Planck’s constant?

Q4

An X-rays tube produces X-rays whose shortest wavelength is 0.2475 Å. The operating voltage of the tube must be   

Q5

X-rays can be diffracted from crystals like the diffraction of light from a grating. The crystal grating for X-rays has a grasting element  

Q6

In the continuous part of the spectrum of X-rays the limiting frequency is

Q7

An X-ray photon has a wavelength of 0.02 Å. Its momentum is

Q8

The potential difference applied to an X-ray tube is increased. As s result, in the emitted radiation, 

Q9

In an X-ray tube, electrons accelerated through a very high potential difference strike a metal target. If the potential difference is increased, the speed of the emitted X-rays  

Q10

An X-ray tube is operated at 66 kV. Then, in the continuous spectrum of the emitted X-rays