Question

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

Solution

Correct option is

Wavelength 0.01 nm will be absent but wavelength 0.02 nm will be present

V = 66 kV

    = 66,000 V. Now  

          

                    

                    

                     = 0.0187 nm.

Since wavelength 0.01 nm is less than  it will be absent from the continuous spectrum.

SIMILAR QUESTIONS

Q1

What is the unit of Planck’s constant?

Q2

What are the dimensions of Planck’s constant?

Q3

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

Q4

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  

Q5

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

Q6

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

Q7

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

Q8

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  

Q9

The operating voltage in an X-ray tube is 10 kV. The maximum energy of the emitted X-ray photons will be 

Q10

The minimum wavelength of X-rays produced in an X-ray tube is  when the operating voltage is V. What is minimum wavelength of the X-rays when the operating voltage is ?