A beam of monoenergetic electrons, which have been accelerated from rest by a potential U, is used to form an interference pattern in a Young's Double slit experiment. The electrons are now accelerated by potential 4U. The fringe width -

Question

A beam of monoenergetic electrons, which have been  accelerated from rest by a potential U, is used to form an interference pattern in a Young's Double slit experiment.  The electrons are now accelerated by potential  4U. The fringe width -

Examsnet · Accepted Answer

Correct Answer is :  is half the original fringe width

KVPY SX SB Exam 2015 Question Paper