Physics Major · 1st Semester
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Major papers
- Calculus: differentiation, first- and second-order differential equations, partial derivatives and Lagrange multipliers
- Vector calculus: scalar/vector fields, gradient, divergence, curl, vector integration and Gauss, Green and Stokes theorems
- Orthogonal curvilinear coordinates and vector operators in Cartesian, spherical and cylindrical systems
- Matrices: eigenvalues, eigenvectors, Cayley-Hamilton theorem and diagonalization
- Probability: binomial, Gaussian and Poisson distributions
- Dirac delta function and its properties
This is a checked summary of the Major paper. The complete unit text and prescribed readings are still being added here.
Scientific computing, numerical errors, programming and plotting, root-finding, interpolation, numerical differentiation/integration, random numbers and curve fitting are covered in the lab syllabus.
The PDF also lists Minor, multidisciplinary, skill enhancement and value-added components. Your registered combination determines what you take.
Study suggestions
Original questions mapped to the listed major paper. These are practice suggestions, not a prediction of the exam.
- Differential equations: Solve dy/dx + 2y = 0 with y(0)=3.
Answer and working
dy/y = -2dx, so ln|y|=-2x+C and y=Ce^(-2x). The initial condition gives C=3; y=3e^(-2x).
- Vector calculus: Find the divergence of F=(x²,y²,z²).
Answer and working
∇·F = ∂x²/∂x + ∂y²/∂y + ∂z²/∂z = 2x+2y+2z.
- Matrices: Find the eigenvalues of the diagonal matrix diag(2,5).
Answer and working
For a diagonal matrix the eigenvalues are its diagonal entries, 2 and 5; equivalently det(A-λI)=(2-λ)(5-λ)=0.
- Numerical analysis: Why does bisection require a sign change across the starting interval?
Answer and working
For a continuous function, opposite signs at the endpoints guarantee at least one root in the interval by the intermediate value theorem. Without that condition, bisection has no such guarantee.