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MN-512
M.Sc. Ist Semester (REG/ATKT)
Examination, 2023-24
Physics
Paper - I
Mathematical Physics
Note :- Attempt all the questions.
SECTION - 'A'
Objective Type Questions
1.5×10=15
(i) The value of Jn (x) is:

(ii) The value of Hn(x) is:

(iii) The Laplace transform of 3t – 5 is:
(iv) The Fourier cosine transform of function f(x) = sin ax:
(v) If r1 and r2 are two variables, then the symmetry properties of Green's function is:
(vi) The poisson's equation ∇2φ = ρ is:
(vii) The analytic function f(z) of which the real part is ex cos y is:
(viii) The function f(z) = |z| is:
(ix) In spherical polar coordinates, the value of scalar factors hr, hθ, and hφ are:
(x) Inverse Laplace transform of 1 / (p2 + a2) is:
SECTION - 'B'
Short Answer Type Questions
5×5=25
Obtain Rodrigue's formula for Legendre Polynomials.
ORProve the recurrence formula for Jn(x).
x Jn (x) = nJn (x) – x Jn+1 (x)
Find the Laplace transform os sin t cos t.
ORDiscuss the simple application of Fourier transform.
What do you know about Green's function? Explain it.
ORFind the Green's function for the boundary value problem
d2y/dx2 – k2y = f (x)
with boundary condition, y (±∞) = 0.
Obtain the polar form of cauchy Riemann equations.
ORShow that log z is analytic function except at z = 0.
Write short note on (any one):
SECTION - 'C'
Long Answer Type Questions
9×5=45
State Bessel's differential equation. Find the solution of its equation.
ORWhat is orthogonal curvilinear coordinate ? Obtain an expression for the curl in terms of orthogonal curvilinear coordinates.
(a) Find the Fourier transform of f(x) if
f(x) = { e-ax a < x < b
0 x < a, x > b }
(b) Find the Laplace transform of the function F(t) = (eat - 1) / a
Find L{t cos at}
Explain Green's function for poission's equation and find solution of poission's equation?
ORDiscuss Green's function for Quantum Mechanical Scattering Problem.
State and Prove Cauchy integral formula.
ORState and prove cauchy Residue theorem.
Write notes on (any two):