Q1. Two particles of masses m and 3.00m are moving toward each other along the x-axis with the same speed v. They undergo a head on elastic collision and rebound along the x- axis. Find out the final speed of the heavier object.
Q2. Assume that the total cross section of rhodium has been measured and the following values have been obtained for resonance parameters of a well-isolated resonance at E0 = 1.26 eV: σ0 = 5000 b, Γ = 0.156 eV, and σs = 5.5 b. design the value of the total cross section for values of the energy between 0.2 and 40 eV. Compute the thermal absorption cross section and compare this with the measured value of 156 b. (Assume that resonance scattering can be neglected.)