. What are wavelength, frequency, time period and amplitude of a sound wave ?

Sure! Let's break down the concepts of wavelength, frequency, time period, and amplitude of a sound wave:

1. Wavelength: The wavelength of a sound wave is the distance between two consecutive points in a wave that are in the same phase. It is usually represented by the symbol λ (lambda) and is measured in meters (m). To find the wavelength, you can measure the distance between two corresponding points, such as two crests or two troughs of the wave.

2. Frequency: The frequency of a sound wave refers to the number of complete cycles or vibrations that occur in one second. It is measured in hertz (Hz). The symbol used to represent frequency is f. To find the frequency, you can count the number of cycles that occur in a given time period.

3. Time Period: The time period of a sound wave is the time it takes for one complete cycle or vibration to occur. It is the reciprocal of the frequency and is measured in seconds (s). The symbol used to represent time period is T. To find the time period, you can calculate the inverse of the frequency.

4. Amplitude: The amplitude of a sound wave refers to the maximum displacement or distance that a particle in the medium (such as air) moves from its equilibrium position when the wave passes through it. It is a measure of the intensity or loudness of the sound wave. The amplitude is usually represented by the symbol A and is measured in meters (m).

So, in summary:

• Wavelength (λ): Distance between two consecutive points in a wave that are in the same phase, measured in meters (m).
• Frequency (f): Number of complete cycles or vibrations that occur in one second, measured in hertz (Hz).
• Time Period (T): Time it takes for one complete cycle or vibration to occur, measured in seconds (s).
• Amplitude (A): Maximum displacement or distance that a particle in the medium moves from its equilibrium position, measured in meters (m).

I hope this helps! Let me know if you have any further questions.