Chapter Exam

Chapter 11: Waves — Online MCQ Test

Q: Which of the following waves requires a material medium to propagate?

Answer: B. Mechanical waves — Mechanical waves are waves that require a material medium to propagate, unlike electromagnetic waves.

Q: The distance between two consecutive crests in a transverse wave is called:

Answer: C. Wavelength — Wavelength is defined as the distance between two consecutive identical points of a wave, such as two consecutive crests or troughs.

Q: The velocity of a sound wave in a gas depends on:

Answer: C. The temperature of the gas — The speed of sound in an ideal gas is given by v = sqrt(gamma*R*T/M), making it dependent on temperature.

Q: If the temperature of the medium increases, the velocity of sound:

Answer: C. Increases — Since v is directly proportional to the square root of the absolute temperature, velocity increases as temperature rises.

Q: In the fundamental mode of an open organ pipe, the number of nodes and antinodes are:

Answer: A. 1 node, 2 antinodes — An open pipe has antinodes at both ends and a node in the center, totaling 1 node and 2 antinodes.

PHYSICS · CLASS 11th · Tamil Nadu State Board

Practice Chapter 11: Waves with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 11th PHYSICS. This chapter covers: The final chapter details wave motion types longitudinal transverse progressive wave equations and superposition principle. Students examine standing waves in pipes strings beats p.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 11: Waves — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 11th PHYSICS — Chapter 11: Waves, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following waves requires a material medium to propagate?

A. Light waves
B. Mechanical waves ✓
C. Radio waves
D. X-rays

Answer: B. Mechanical waves
Mechanical waves are waves that require a material medium to propagate, unlike electromagnetic waves.

The distance between two consecutive crests in a transverse wave is called:

A. Amplitude
B. Frequency
C. Wavelength ✓
D. Time period

Answer: C. Wavelength
Wavelength is defined as the distance between two consecutive identical points of a wave, such as two consecutive crests or troughs.

The velocity of a sound wave in a gas depends on:

A. The amplitude of the wave
B. The frequency of the wave
C. The temperature of the gas ✓
D. The wavelength

Answer: C. The temperature of the gas
The speed of sound in an ideal gas is given by v = sqrt(gamma*R*T/M), making it dependent on temperature.

If the temperature of the medium increases, the velocity of sound:

A. Decreases
B. Remains constant
C. Increases ✓
D. Becomes zero

Answer: C. Increases
Since v is directly proportional to the square root of the absolute temperature, velocity increases as temperature rises.

In the fundamental mode of an open organ pipe, the number of nodes and antinodes are:

A. 1 node, 2 antinodes ✓
B. 2 nodes, 1 antinode
C. 0 nodes, 2 antinodes
D. 1 node, 1 antinode

Answer: A. 1 node, 2 antinodes
An open pipe has antinodes at both ends and a node in the center, totaling 1 node and 2 antinodes.

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