Question

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

Solution

Correct option is

Is directly proportional to the accelerating potential

 

The maximum frequency is given by 

          ,  

 

SIMILAR QUESTIONS

Q1

Two parallel plates are placed 5 cm apart in an evacuated tube and a potential difference of 200 V is applied across them? What is the force experienced by an electron at rest in the region between the plates?   

Q2

The first scientist to measure the charge to mass ratio of the electron was

Q3

In Thomson’s experiment for determining , the potential difference between the cathode and the anode (in the accelerating column) is the same as that between the deflecting plates (in the region of crossed fields). If the potential difference is doubled, by what factor should the magnetic field be increased to ensure that the electron beam remains undeflected?

Q4

The minimum wavelength of X-rays emitted from an X-ray tube operating at a voltage of 104 volts is roughly equal to  

Q5

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

Q6

What is the unit of Planck’s constant?

Q7

What are the dimensions of Planck’s constant?

Q8

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

Q9

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  

Q10

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