Question

Solution

Correct option is

The minimum wavelength decreases   Thus if V is increased, decreased.

SIMILAR QUESTIONS

Q1

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?

Q2

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

Q3

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

Q4

What is the unit of Planck’s constant?

Q5

What are the dimensions of Planck’s constant?

Q6

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

Q7

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

Q8

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

Q9

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

Q10

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