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AN ELECTRON BEAM CAN UNDERGOE DEFRACTION BY CRYSTALS.THROUGH WHAT POTENTIAL SHOULD A BEAM OF ELECTRONS BE ACCELERATED SO THATNITS WAVELENGTH BECOME EQUAL TO 1.54 ANGSTROM

AN ELECTRON BEAM CAN UNDERGOE DEFRACTION  BY CRYSTALS.THROUGH WHAT  POTENTIAL SHOULD A BEAM OF ELECTRONS BE ACCELERATED SO THATNITS WAVELENGTH BECOME EQUAL TO 1.54 ANGSTROM

Grade:12

1 Answers

Vikas TU
14149 Points
4 years ago
From the relation p = h/k where k is the wavelngth
first calculate momentum p.
And for kinetic enrgy apply,
K.E. = p^2/2m put the values and get the answer

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