“Mechanical Waves – Lecture 2 | Advanced Concepts & Numericals | Special for TGT–PGT–LT Students”

✅ Title Options (Lecture – 2)

1️⃣ “Mechanical Waves – Lecture 2 | Advanced Concepts & Numericals | Special for TGT–PGT–LT Students”

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✅ Description (Lecture – 2)

Welcome back students!
This is Lecture – 2 of our Mechanical Waves series, specially designed for TGT, PGT & LT Physics aspirants.
In this part, we move ahead from the basics and focus on advanced concepts, derived relations, and high-level numerical problems often asked in teaching exams.

📌 What We Cover in Lecture – 2

✔ Wave speed in strings, air & solids
✔ Factors affecting wave speed
✔ Energy transported by mechanical waves
✔ Power of a wave
✔ Phase difference & path difference
✔ Wave graphs: displacement vs time, displacement vs distance
✔ Important formulas revision
✔ Exam-level solved numericals

⭐ Top Important Questions Students Usually Ask

How does tension and mass per unit length affect wave speed on a string?

What is the relation between energy and amplitude of a wave?

How is phase difference related to wavelength?

How to read wave graphs correctly in exams?

Why does wave speed remain constant but frequency changes?

What makes a question tricky in mechanical waves?

How to identify transverse vs longitudinal wave graphs?

🎯 Perfect for TGT–PGT–LT Physics Exam Preparation

This lecture strengthens your conceptual clarity and boosts your numerical-solving skills with targeted, exam-focused practice.