PHY A-09: Open Elective: Basic Applied Physics

• Unit-1: Basic Electronics: Idea of intrinsic and extrinsic semiconductors, p-n junction diode, Zener diode, LED, BJT, FET with their applications, Elementary Boolean algebra, conversion of decimal numbers into binary numbers, Basic and Universal logic gates. [Lectures 20]

PHY C- 10: Solid State Physics and Statistical Mechanics

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PHY C- 11: Nuclear and Particle Physics & Electronics

• Unit-2: Nuclear Reactions: Type of Nuclear Reactions, Q values and Threshold energy, Conservation laws, Direct and Compound Nuclear reaction Mechanisms, Compound Nucleus theory, Resonance Scattering, BREIT-Wigner one level formula.[ Lectures 10]

• Unit-5: Elementary Particle Physics: Introduction to Quark hypothesis, Quark model and Elementary particles (Hadrons and Leptons). Idea of Isospin and strangeness, Types of interactions. [Lectures 5]

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Why study particle Physics

To answer the following important question:

• The protons in any nucleus should strongly repel one another due to their charges of the same sign, so what is the nature of the force that holds the nucleus together?

  (A) Gravitational force

  (B) Electromagnetic force

  (C) Weak nuclear force

  (D) Strong nuclear force

• What is the nature of the force that holds the nucleus together?

• Are electron, proton and neutron the only elementary particles?

• Which particle is responsible for mediating the electromagnetic force?

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Competitive Exam Questions - GATE, NET, JEST, etc.

• The semi-empirical mass formula for the binding energy of nucleus contains a surface correction term. This term depends on the mass $A$ of the nucleus and is proportional to:

  (A) $A^{-\frac{1}{3}}$

  (B) $A^{\frac{1}{3}}$

  (C) $A^{\frac{2}{3}}$

  (D) $A$

  Solution: (C)

• In the $SU(3)$ quark model, the triplet of mesons $(\pi^+, \pi^0,\pi^-)$ has the Iso-spin $I$ and the Strangeness $S$ equal to:

  (A) $I=1, S=0$

  (B) $I=0, S=0$

  (C) $I=1, S=1$

  (D) $I=0, S=1$

• The deuteron has only one bound state with spin parity $1^+$, isospin $0$, and electric quadrupole moment $0.286 \, \text{efm}^2$. These data suggest that the nuclear forces are having:

  (A) only spin and isospin dependence

  (B) no spin dependence and no tensor components

  (C) spin dependence but no tensor components

  (D) spin dependence along with tensor components