Consider the figure of an equilateral triangle of side d moving with a velocity v in a direction perpendicular to one of its sides. Find the apparent perimeter of the triangle. (a) d (b) d (c) 3d (d) d (1-√4-3) An element of atomic number 16 has a wavelength for the Kline. What is the wavelength of the K line emitted by an element of atomic number 31. (a) 32 (b) (c) 62 (d) Which of the following is the conserved quantity if the system having Lagrangian L=m(x² + y²)k(x²+y²). (a) Px (b) Py (c) L (d) None The wavefunction of the particle in its ground state is (x)-Ce. The first order correction to the energy value if a perturbation of H'=4kx² is applied to the potential V(x)=-8(x). where (x) is the delta function is, (a) (b) 4k k k (c)