Important Questions of Superposition of Waves | 12th Maharashtra Board | Physics | Feb 2025

Important Questions of Superposition of Waves | Class 12 Physics

Important Questions of Superposition of Waves

Chapter: Superposition of Waves
This blog post contains carefully curated questions for 12th Standard Maharashtra students, tailored to help you excel in your Physics exam. Dive into these important questions to strengthen your understanding and score higher!

1. Write the following definitions (1 mark each):

  1. Define Mechanical Waves.
  2. Define Electromagnetic Waves.
  3. Define Wavelength.
  4. Define Angular Frequency.
  5. What is Progressive Wave?
  6. What is Stationary Wave?
  7. What is Fundamental Frequency?
  8. What is Overtone?
  9. What is Beat?
  10. What is Fundamental Mode?
  11. What is Harmonics?
  12. What is End Correction?
  13. Define Waxing.
  14. Define Waning.
  15. Define Beat.
  16. Define Beat Frequency.
  17. Define Period of Beats.

2. Short Answer Questions (2 Marks Each):

  • Derive the relation between velocity, frequency, and wavelength of the wave.
  • Write the characteristics of Progressive Waves.
  • Write the characteristics of Stationary Waves.
  • Write the expression for progressive wave traveling along positive X-direction and negative X-direction.
  • Write the Principle of Superposition of Waves.
  • Explain the superposition of two wave pulses having a phase difference of 180° moving towards each other.

3. Long Answer Questions:

  • Derive an expression for the amplitude of the resultant wave produced due to the superposition of waves. Explain the condition for maximum and minimum amplitude. (4 Marks)
  • Derive an expression for a stationary wave on a stretched string. Explain the conditions for Node and Antinode. (4 Marks)

4. Distinguish Between (3 Marks Each):

  • Progressive Waves and Stationary Waves.
  • Free and Forced Vibrations.

5. Higher-Order Thinking Questions:

  • Show that only odd harmonics are present in the vibration of an air column in a pipe closed at one end. (3 Marks)
  • Show that all harmonics are present in a stretched string between two rigid supports. (3 Marks)
  • Deduce analytically the expression for beat frequency of two sound waves having the same amplitude and slightly different frequencies. (3 Marks)

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