1SP201 Physics Ultimate Master Guide

1. Lasers & Fiber Optics

Master Strategy High weightage module. He-Ne and CO2 lasers are frequent. For Fiber, Numerical Aperture (NA) numericals appear in 90% of papers. Learn the block diagram of "Fiber Optic Communication Link".

LASER Physics

Explain construction and working of Semiconductor Laser. Diagram High Yield	Dec 24 Dec 23	Pg 5
Explain CO2 Laser construction/working.	Feb 25 July 24	Pg 17
Explain Ruby Laser with diagram. Limitations?	Aug 23 June 23 May 24	Pg 1
Explain 3-Level / 4-Level Laser Systems. Principles & Drawbacks. Repeat	July 25 Apr 25 July 24 May 24	Pg 3
What is Pumping? Types/Importance. What is Optical Resonator? Repeat	July 25 Dec 24 July 24 Dec 23 May 24	Pg 5
Explain Stimulated Absorption, Spontaneous vs Stimulated Emission. 2-Level Sys	Feb 25 Apr 25	Pg 17
Why LASER acronym should be LOSER? Unique	Feb 24	Pg 9

Fiber Optics

Describe Optical Fiber Communication Link (Block diagram/Flow). Diagram High Yield	Apr 25 Dec 24 Feb 24 May 24 June 23	Pg 3
Differentiate: Step Index vs Graded Index / Core vs Cladding. Repeat	Feb 25 Apr 25 July 24 June 23	Pg 3
Fiber Sensors: Intensity Modulated (Temp/Force/Liquid Level). Applied	July 25 Feb 25 Apr 25 Dec 23 Aug 23	Pg 19

2. Quantum Mechanics

Master Strategy The "Particle in a Box" (Infinite Square Well) derivation and numericals are mandatory. Be ready to calculate Energy, Momentum, and Probability.

Theory & Derivations

Derive energy/wavefunction for Particle in Infinite Square Well (1D Box). Diagram Top Repeat	July 25 Feb 25 Apr 25 Feb 24	Pg 17
Derive Schrodinger's Equation (Time Dependent / Independent).	July 25 Dec 23 May 24	Pg 19
Wave Function: Concept, Postulates, Characteristics, Normalization.	Feb 25 Apr 25 Dec 24 May 24	Pg 3
Differences: Classical vs Quantum Mechanics.	July 25 July 24	Pg 19

3. Nanomaterials & Synthesis

Master Strategy Focus on Synthesis Methods (Ball Milling, CVD, Laser Ablation). "Surface to Volume Ratio" is a key concept question.

Synthesis Techniques

Discuss Ball Milling technique. Advantages/Disadvantages. Diagram High Yield	July 25 Feb 25 July 24 Aug 23	Pg 20
Discuss Laser Ablation technique.	Apr 25 Dec 23 June 23	Pg 4
Discuss CVD (Chemical Vapor Deposition) / Sputtering / Sol-Gel.	Dec 24 Feb 24 May 24	Pg 5

Properties & Characterization

Explain Surface to Volume Ratio & Quantum Confinement.	Apr 25 July 24 Feb 24 Dec 23 June 23 May 24	Pg 4
Microscopy: SEM vs TEM. Construction & Working. Diagram	Dec 24 July 24 Dec 23 Aug 23	Pg 5
CNTs (Carbon Nanotubes): Properties.	Feb 25 Dec 24 Aug 23	Pg 18

4. Acoustics & Ultrasonics

Master Strategy Memorize Sabine's Formula and the concept of Reverberation Time. For Ultrasonics, know the difference between Piezoelectric (Inverse/Reverse) and Magnetostriction methods.

Acoustics (Sound)

Sabine's Formula & Reverberation Time control. Good Acoustics requirements. High Yield	July 25 Dec 24 July 24 Apr 25 Feb 24	Pg 20
What is 1 dB noise? Threshold of audibility. Sound wave characteristics. Rare	Dec 23 Aug 23 May 24	Pg 22

Ultrasonics

Production Methods: Reverse/Inverse Piezoelectric vs Magnetostriction. High Yield	July 25 Dec 24 Apr 25 Feb 24 Aug 23 June 23	Pg 20
Applications: Cleaning, Acoustic Grating (Velocity determination).	Dec 24 July 24 Dec 23	Pg 6

5. Semiconductors, Vacuum & Nuclear

Mixed Topics

Fermi Level: Significance, N/P-type behavior with Temperature. Graph Repeat	July 25 Feb 25 Apr 25 Dec 24 Feb 24 May 24	Pg 20
Bandgap: Direct vs Indirect Bandgap difference. Molecular Orbital Theory (MOT).	Feb 25 Dec 24 July 24 Dec 23 June 23	Pg 18
Pumps & Detectors: Rotary vs Diffusion vs Ion Sputter Pumps. GM Counter vs Scintillation Counter. Diagram	July 25 Feb 25 Apr 25 Dec 24 July 24 Aug 23 Dec 23	Pg 19
Accelerators: Linear vs Circular. Repeat	July 25 Feb 25 Apr 25	Pg 20
Pirani Gauge (Low pressure measurement). Unique	Dec 23	Pg 22

6. Numerical Problem Bank

Formula Checklist Prepare formulas for: 1. Laser Intensity 2. Spontaneous/Stimulated Ratio 3. Fiber Acceptance Angle/NA 4. Compton Shift 5. Particle in Box Energy 6. Resultant Sound Intensity (dB).

Resultant Sound Intensity (dB): Adding dB levels (e.g., 80dB + 75dB). Top Repeat	July 25 Feb 25 Apr 25 Dec 24 July 24 May 24 Dec 23 June 23	Pg 20
Particle in Box: Find Energy, Momentum, Probability for Excited states. Top Repeat	July 25 Feb 25 Apr 25 Dec 24 July 24 May 24 June 23	Pg 18
Compton Scattering: Shift, Wavelength, Recoil Energy.	July 25 Apr 25 July 24 Feb 24 Dec 23 May 24 June 23	Pg 19
Fiber Optics: Calculate NA, Acceptance Angle, Cladding Index.	Feb 25 Dec 24 July 24 Dec 23 Aug 23 May 24 June 23	Pg 18
Laser: Spontaneous/Stimulated Ratio, Intensity calculation.	Feb 25 Apr 25 Dec 24 July 24 Feb 24 Dec 23 May 24 June 23	Pg 17