ii) Calculate the value of the HOMO and the LUMO wavefunctions at x= 0.300L and at x= 0.500L. %3!
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- (5) The wave function for a particle is given by: (x) = Ae-=/L for r 2 0, where A and L are constants, and L > 0. b(x) = 0 for r < 0. (a) Find the value of the constant A, as a function of L. A useful integral is: fe-K=dx = -ke-K, %3D where K is a constant. (b) What is the probability of finding the particle in the range –10 L < x< -L? (c) What is the probability of finding the particle in the range 011. Calculate the normalization constant for the wavefunction nπ Yn(x) = sin x. L22 A particle is confined to the one-dimensional infinite poten- tial well of Fig. 39-2. If the particle is in its ground state, what is its probability of detection between (a) x = 0 and x = 0.30L. (b) x = 0.70L and x = L, and (c) x = 0.30L and x = 0.70L? U(x) Fig 39-2(a) A quantum dot can be modelled as an electron trapped in a cubic three-dimensional infinite square well. Calculate the wavelength of the electromagnetic radiation emitted when an electron makes a transition from the third lowest energy level, E3, to the lowest energy level, E₁, in such a well. Take the sides of the cubic box to be of length L = 3.2 x 10-8 m and the electron mass to be me = 9.11 x 10-³¹ kg. for each of the E₁ and E3 energy (b) Specify the degree of degeneracy levels, explaining your reasoning.125. An attractive square well potential is 55 represented by -V for r a The scattering due to this potential in low energy limit is proportional to nth power of a. Here n is (1) 2 (2) 4 (3) 5 (4) 6