Applied Physics  Top 10 Most Repeated Questions (Very High Probability) | | R22 JNTUH Important Questions
Explain intrinsic and extrinsic semiconductors with energy band diagrams.
Derive the Hall effect and explain the determination of Hall coefficient and carrier concentration.
Differentiate between direct band gap and indirect band gap semiconductors with suitable examples.
Explain the construction, working principle, and V-I characteristics of a P-N junction diode.
Explain the construction, working principle, and breakdown characteristics of a Zener diode.
Explain the construction, operation, and characteristics of a bipolar junction transistor (BJT).
Describe the structure, materials, working principle, and characteristics of an LED.
Explain the construction and operation of a PIN diode and its applications.
Explain the structure and working principle of an avalanche photodiode (APD).
Explain the construction, working principle, characteristics, and applications of solar cells.
xplain blackbody radiation and derive Planck’s radiation law.
Explain the photoelectric effect and derive Einstein’s photoelectric equation.
Describe the Davisson and Germer experiment and explain its significance.
State and explain Heisenberg uncertainty principle with applications.
Derive the time independent Schrödinger wave equation and explain its physical significance.
Solve the particle in a one-dimensional potential box and obtain the energy eigenvalues and eigenfunctions.
Explain free electron theory (Drude-Lorentz and Sommerfeld models) and discuss their merits and limitations.
Explain Fermi-Dirac distribution and its importance in solids.
Describe the Kronig-Penney model and explain the origin of energy bands using the E-K diagram.
Classify solids into conductors, semiconductors, and insulators based on band theory.
Define dielectric materials and explain the different types of polarization.
Explain ferroelectric, piezoelectric, and pyroelectric materials with their applications.
Describe the construction and working principle of liquid crystal displays (LCD) and crystal oscillators.
Explain hysteresis and discuss the significance of the hysteresis loop.
Differentiate between soft magnetic materials and hard magnetic materials with applications.
Explain magnetostriction and magnetoresistance with practical applications.
Describe bubble memory devices, magnetic field sensors, and multiferroic materials.
Explain the conductivity of liquid and solid electrolytes.
Discuss superionic conductors and materials/electrolytes used for super capacitors.
Explain rechargeable ion batteries and solid fuel cells with their working principle
Define nanoscale and explain the concept of quantum confinement in nanomaterials.
Explain the significance of surface-to-volume ratio in nanomaterials.
Describe bottom-up fabrication techniques: sol-gel method, precipitation method, and combustion method.
Explain the top-down fabrication technique of ball milling.
Describe Physical Vapor Deposition (PVD) and its applications.
Explain Chemical Vapor Deposition (CVD) and compare it with PVD.
Explain the principle and applications of X-ray Diffraction (XRD).
Describe the working principle and applications of Scanning Electron Microscopy (SEM).
Explain the working principle and applications of Transmission Electron Microscopy (TEM).
Discuss the important applications of nanomaterials in engineering and technology.
spontaneous emission, and stimulated emission).
Derive Einstein coefficients and explain the relations between them.
Explain the principle of lasing action and the different pumping methods used in lasers.
Describe the construction, working principle, energy level diagram, and applications of Ruby Laser.
Explain the construction, working principle, and applications of He-Ne Laser.
Describe the construction, working principle, and applications of CO2 Laser, Nd:YAG Laser, and Semiconductor Laser.
Discuss the important applications of lasers in engineering, medicine, and communication.
Explain the principle of total internal reflection and the construction of an optical fiber.
Derive acceptance angle and numerical aperture of an optical fiber.
Classify optical fibers, explain losses in optical fibers, and discuss optical fiber communication system and applications.
all these questtions will be be there in the website also