In an electron microscope, the electrons are accelerated by a voltage of 14 kV. If the voltage is changed to 224 kV, then the de Broglie wavelength associated with the electrons would …….. .
A. increase by 2 times
B. decrease by 2 times
C. decrease by 4 times
D. increase by 4 times
Answer:C
In an electron microscope, the electrons are accelerated by a voltage of 14 kV. If the voltage is changed to 224 kV, then the de Broglie wavelength associated with the electrons would …….. .
A. increase by 2 times B. decrease by 2 times C. decrease by 4 times D. increase by 4 times