---

📚 Official Learning Libraries & Channels

🌊 Waves – JEE Advanced Objective Library

Complete Mechanical Waves objective questions from basic to toughest JEE Advanced level.

👉 Open Waves Library

📘 IIT-JEE Physics Master Library

Central hub covering all Physics chapters with structured IIT-level preparation.

👉 Open Physics Master Library

🏫 Learning Resource Hub

One-stop hub for all subjects, libraries, notes, and exam-oriented resources.

👉 Open Resource Hub

📢 WhatsApp Learning Channel

Daily updates, new libraries, exam tips, and instant notifications.

👉 Join WhatsApp Channel

---

🌊 WAVES (Mechanical Waves)

Objective Questions – Page 10 (Final JEE Advanced Set)

---

Q91️⃣ (Wave + Energy Transfer)

Energy carried by a wave depends on:

• A) Amplitude only
• B) Frequency only
• C) Amplitude and frequency
• D) Speed only

Answer: C

Key: Energy ∝ A²ω²

---

Q92️⃣ (String – Linear Density)

Wave speed on a string is independent of:

• A) Tension
• B) Linear mass density
• C) Frequency
• D) Length

Answer: C

---

Q93️⃣ (Standing Wave – Nodes)

Distance between two consecutive nodes in a stationary wave is:

• A) λ
• B) λ/2
• C) λ/4
• D) 2λ

Answer: C

---

Q94️⃣ (Sound – Temperature Effect)

Speed of sound in air increases with:

• A) Pressure
• B) Density
• C) Temperature
• D) Humidity only

Answer: C

---

Q95️⃣ (Beats – Condition)

Beats are clearly heard when frequency difference is:

• A) Very large
• B) Zero
• C) Small
• D) Infinite

Answer: C

---

Q96️⃣ (Open Pipe – Harmonics)

An open pipe supports:

• A) Only even harmonics
• B) Only odd harmonics
• C) All harmonics
• D) No harmonics

Answer: C

---

Q97️⃣ (Doppler – Source Approaching)

If a sound source approaches observer, frequency heard:

• A) Decreases
• B) Remains same
• C) Increases
• D) Becomes zero

Answer: C

---

Q98️⃣ (Wave Equation – Meaning)

In y = A sin(kx − ωt), ω represents:

• A) Wave number
• B) Phase constant
• C) Angular frequency
• D) Velocity

Answer: C

---

Q99️⃣ (Sound Intensity)

Doubling the amplitude of sound wave increases intensity by:

• A) 2 times
• B) 4 times
• C) 8 times
• D) No change

Answer: B

---

Q100️⃣ (Conceptual – Wave Nature)

Mechanical waves require:

• A) Vacuum
• B) Medium
• C) Electric field
• D) Magnetic field

Answer: B

---

🎯 Objective Series Completed (Q1–Q100)
WAVES – JEE Advanced Level Mastery

👉 Ready for Waves – PYQs or One-Page Formula + Mind Map?