Wave Optics — Study Plan
IISER Aptitude Test · Physics
Step-by-step Wave Optics study plan for IISER Aptitude Test Physics 2026 — structured month-wise approach to mastering this chapter.
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A structured approach to studying Wave Optics for IISER Aptitude Test Physics.
Study Plan for Wave Optics
Day 1–2: Learn the Theory
Study the chapter thoroughly. Note down definitions, formulas, and key concepts.
Day 3: Practice Problems
Solve practice questions and previous year IISER Aptitude Test problems. There are 280 questions available for this chapter.
Day 4: Revise & Test
Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding.
What to Focus On
- Corpuscular model predicted light speed increases in denser medium (incorrect)
- Wave model predicted light speed decreases in denser medium (correct)
- Foucault's experiment (1850) proved light travels slower in water than air
- Wavefront: locus of points vibrating in same phase
- Point source → Spherical wavefront
- Line source → Cylindrical wavefront
- Refraction: sin i/sin r = c/v = ⁿμ (Snell's law)
- Reflection: angle of incidence = angle of reflection
- Speed changes in refraction, remains same in reflection
Common Mistakes to Avoid
In Young's double slit experiment, increasing slit width increases fringe width
Path difference and phase difference mean the same thing
In single slit diffraction, narrower slit produces narrower central maximum
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