File Details:

{"filename":"bsc-1-sem-computer-science-applied-physics-np-3574-dec-2023.pdf","description":"This file contains the B.Sc. First Semester (Computer Science) examination paper for Applied Physics (BCS-103) from December 2023. It includes questions on coherent sources, lasers, diffraction, Einstein's coefficients, special theory of relativity, He-Ne gas lasers, Newton's rings, superposition theorem, and oscillatory discharge through inductance."}

Questions:

  1. What are coherent sources?
  2. Define polarization.
  3. Write any three applications of Laser.
  4. What is diffraction?
  5. Explain frame of reference.
  6. Define phenomenon of double refraction.
  7. Find the relation between Einstein's coefficients.
  8. Define time dilation and derive the formula for it.
  9. Write basic postulates of special theory of relativity and obtain Lorentz transformation equations from these postulates.
  10. Describe the construction and working of He-Ne gas laser with the energy level diagram.
  11. What are Newton's rings? How are they formed? Show that in reflected light diameter of bright rings is proportional to square root of odd numbers.
  12. State and prove superposition theorem.
  13. Show that when a condenser is discharged through an inductance, the discharge is oscillatory. What will be the time period and frequency?
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