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Kriti
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Asked: 2026-10-14T05:54:43+00:00 In:

The graphical representation of two sound waves A and B propagating at the same speed of 345 m s⁻¹ is shown in Fig. 10.33. What is the wavelength of each of them? Also, calculate their frequencies.

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Wave A completes one cycle in 2.5 cm, giving 13,800 Hz frequency. Wave B completes one cycle in 5.0 cm, giving a frequency of 6900 Hz at 345 m s⁻¹.

Class 9 Science Exploration New Book All Chapter Solution
Revise, Reflect, Refine Chapter 10 Sound Waves Question Answer

cbse internal assessment 2026-27cbse sst notes on science exploration chapter 10graphical representation of two sound waves a and bimportant questions from sound waves characteristics and applicationswhat is the wavelength of each of them
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    1. (i) Wave A: One complete oscillation covers 2.5 cm along the distance axis, so its wavelength is 0.025 m. Dividing the wave speed of 345 m s⁻¹ by 0.025 m gives a frequency of 13,800 Hz. (ii) Wave B: One complete cycle spans 5.0 cm, giving a wavelength of 0.05 m. Dividing 345 m s⁻¹ by 0.05 m gives a frequency of 6900 Hz.

       

      For more NCERT Solutions of Class 9 Science Exploration Chapter 10 Sound Waves Characteristics and Applications Question Answer (2026-27)

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-10/

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