CLASS TEST - I

June 06, 2026
  1. 1.  Explain how experimentally confirmed the existence of matter waves by the diffraction phenomena?
  2. 2.  A particle is confined to an infinite potential well of width ‘L’. Calculate the probability and energy of the particle between x=0 and x=L/4 in the first excited state. Find the least energy of an electron moving in the dimension in an infinitely high potential box of width 1Å, given mass of the electron 9.11×10⁻³¹ kg and h =6.63×10⁻³⁴ J.s.
  3. 3.  Find the de Broglie wavelength associated with an electron accelerated through a potential difference of 1600 V.