BT-201 Engineering Physics Important Questions for RGPV B.Tech 1st Year

Complete guide to BT-201 Engineering Physics for RGPV B.Tech 1st Year. Get detailed syllabus, practical experiment list, unit-wise important questions, and previous year exam preparation material in one place.

Syllabus of BT-201 Engineering Physics

Unit-I: Wave nature of particles and the Schrodinger equation

Introduction to Quantum mechanics, Wave nature of Particles, operators ,Time-dependent and time- independent Schrodinger equation for wavefunction, Application: Particle in a One dimensional Box, Born interpretation, Free-particle wavefunction and wave-packets, v_g and v_p relation Uncertainty principle.

Unit-II: Wave optics

Huygens’ principle, superposition of waves and interference of light by wave front splitting and amplitude splitting; Young’s double slit experiment, Newton’s rings, Michelson interferometer, MachZehnde interferometer. Farunhofer diffraction from a single slit and a circular aperture, the Rayleigh criterion for limit of resolution and its application to vision; Diffraction gratings and their resolving power.

Unit III: Introduction to solids

Free electron theory of metals, Fermi level of Intrinsic and extrinsic, density of states, Bloch’s theorem for particles in a periodic potential, Kronig-Penney model(no derivation) and origin of energy bands. V-I characteristics of PN junction, Zener diode, Solar Cell, Hall Effec.

Unit IV: Introduction to solids

Einstein’s theory of matter radiation interaction and A and B coefficients; amplification of light by population inversion, different types of lasers: gas lasers ( He-Ne, CO2), solid-state lasers(ruby, Neodymium),Properties of laser beams: mono-chromaticity, coherence, directionality and brightness, laser speckles, applications of lasers in science, engineering and medicine. Introduction to Optical fiber, acceptance angle and cone, Numerical aperture, V number, attenuation.

Unit V: Electrostatics in vacuum

Calculation of electric field and electrostatic potential for a charge distribution; Electric displacement, Basic Introduction to Dielectrics, Gradient, Divergence and curl,Stokes’ theorem, Gauss Theorem, Continuity equation for current densities; Maxwell’s equation in vacuum and non-conducting medium; Poynting vector.

List of Experiment BT-201 Engineering Physics

To determine the dispersive power of prism.
To determine the ʎ of sodium light with the help of newton’s Ring.
Resolving Power of Telescope.
YDSE (Young’s double slit Experiment).
To determine the frequency of AC mains supply.
V-I Characteristics of P-N junction diode.
To determine the ʎ of diode loses by single slit diffraction.
To determine the plank’s constant with the help of photocell.
Hall’s effect experiment.
Calibration of ammeter by using reference zener diode.
To study the effect of temperature on reverse saturation current in P-N junction diode and to determine the energy band gap.
To determine the ʎ of sodium by using plane diffraction grating.
To determine the prominent lines of mercury source by plane diffraction grating.
To determine the numerical aperture of an optical fiber.
To determine ʎ of given laser by plane diffraction grating.

Important Questions of BT-201 Engineering Physics

Q1. Derive time dependent and time independent Schrodinger wave equation. (June 2025)

Q2. Discuss the physical significance of wave function. (June 2025)

Q3 Describe the construction and working of Mach–Zehnder interferometer. (June 2025)

Q4. What is superposition of waves and interference of light by amplitude splitting? (June 2025)

Q5. Explain the numerical aperture and acceptance angle of optical fiber. (June 2025)

Q6. Explain the construction and working of Ruby laser with neat diagram. (June 2025)

Q7. Explain Maxwell’s equations in vacuum. (June 2025)

Q8. Write a note on different types of polarization in dielectric materials. (June 2025)

Q9. Starting from the principle of charge conservation, derive the continuity equation for current density in a conducting medium. (June 2025)

Q10. What are Einstein coefficients? Derive the relation between Einstein coefficients A and B. (June 2025)

Q11. What is the importance of Rayleigh criterion? Explain the Rayleigh criterion for limit of resolution. (June 2025)

Q12. Explain construction and working of CO₂ Laser with suitable energy level diagram. (June 2025)

Q13. What is Zener diode? Discuss its V-I characteristics. (June 2025)

Q14. Explain in detail the working of Michelson’s interferometer. (June 2025)

Q15. Write short notes on: (June 2025)
(a) Solar cell
(b) Hall effect
(c) Bloch’s theorem

Q16. Deduce the energy eigenvalues and wave function of a particle moving in one dimensional box. (Dec 2024)

Q17. Explain about the Heisenberg’s uncertainty principle in detail. (Dec 2024)

Q18. Explain the Fraunhofer diffraction due to single slit with necessary analysis. (Dec 2024)

Q19. How are Newton’s rings formed? Deduce the expression for diameter of dark and bright fringes. (Dec 2024)

Q20. What is P-N junction diode? Explain its working and discuss its V-I characteristics. (Dec 2024)

Q21. Explain the variation of Fermi level in N-type semiconductor with concentration and temperature. (Dec 2024)

Q22.Explain the construction and working of He-Ne Laser. (Dec 2024)

Q23. Deduce the expression for acceptance angle of an optical fiber. Find the acceptance angle of a fiber having core and cladding refractive indices 1.75 and 1.70 respectively. (Dec 2024)

Q24. Starting from the principle of charge conservation, derive the continuity equation for current densities in a conducting medium. (Dec 2024)

Q25. Derive the Electric field and Electrostatic Potential for a charge distribution. (Dec 2024)

Q26. Discuss about the Free Particle Wave Function and Wave Packets. (Dec 2024)

Q27. What is LASER? Discuss the properties of LASER light. (Dec 2024)

Q28. Deduce an expression for Hall Co-efficient and Hall Voltage. (Dec 2024)

Q29. State and derive the Divergence theorem and Gauss theorem. (Dec 2024)

Q30. Q8 Write short notes on any two: (Dec 2024)
(a) Poynting vector
(b) Interference and Young’s double slit experiment
(c) Kronig-Penney Model
(d) V-number