(a) Define the probability density for a given wave function. How do you normalise a wave function? 4 (b) The wave function of a particle is described by: 4(x) = {Ae-x/ª, 0, -asxsa otherwise where A and lal are positive real constants. (1) Sketch and normalise . (ii) Where is the particle most likely to be found? Why? (iii) Calculate the expectation values of (x) and (x²).

you didnt answer (D)

Please use neat handwriting and show work A light ray traveling in air hits the surface of an unknown liquid ina beaker as shown in the picture. When the angle 0 is 55° the ray hits at a point where x = 2 cm. Calculate the index of refraction of the liquid.