Question
An electron beam is being used in YDSE. On increasing kinetic energy of the electrons, fringe width will:
Answer: Option B
:
B
Fringe width is directly proportional to wavelength of wave. If we increase the kinetic energy of theelectrons, since the de – Broglie wavelength of the electron beam will reduce, the fringe width will also decrease.
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:
B
Fringe width is directly proportional to wavelength of wave. If we increase the kinetic energy of theelectrons, since the de – Broglie wavelength of the electron beam will reduce, the fringe width will also decrease.
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