Sound travels faster in water than in air, so its speed increases when it enters water.

Wavelength = Speed / Frequency = 340 m/s / 1700 Hz = 0.2 m.

The period (T) is the inverse of frequency (f); T = 1/f = 1/440 ≈ 0.00227 s.

Wavelength is inversely proportional to frequency; if frequency is doubled, wavelength is halved.

Wavelength is inversely proportional to frequency; if frequency is doubled, wavelength halves.

In constructive interference, the amplitudes of the waves add up, resulting in a doubled amplitude.

Sound travels fastest in solids like steel due to closely packed molecules.

As the frequency of a sound increases, its pitch also increases.

An increase in intensity by a factor of 10 results in an increase of 10 dB, but the sound level increases by 20 dB.

Every increase of 10 dB represents a tenfold increase in intensity, so 10 times more intense is 20 dB.

The Doppler effect refers to the change in frequency of a wave in relation to an observer moving relative to the wave source.

The phenomenon of two sound waves of slightly different frequencies interfering is called beats.

Increasing the amplitude of a sound wave increases its loudness.

The speed of sound in air increases with an increase in temperature.

Frequency (f) = speed/wavelength = 343 m/s / 0.5 m = 686 Hz.

Frequency (f) = Speed (v) / Wavelength (λ) = 340 m/s / 0.5 m = 680 Hz.

The fundamental frequency is given by f = v/λ. For a pipe open at both ends, λ = 2L = 4 m. Thus, f = 343 m/s / 4 m = 85.75 Hz, approximately 85 Hz.

The fundamental frequency is given by f = v/λ; for a pipe open at both ends, λ = 2L, so f = v/(2L) = 343/(2*2) = 42.875 Hz.

The bending of sound waves around obstacles is known as diffraction.

Sonar technology is based on the reflection of sound waves to detect objects underwater.

Sonar works on the principle of reflection of sound waves to detect objects underwater.

The typical range of human hearing is from 20 Hz to 20 kHz.

The typical range of human hearing is from 20 Hz to 20 kHz.

The speed of sound in air at 20°C is approximately 343 m/s.

The speed of sound in air at 20°C is approximately 343 m/s.

The lowest frequency in a harmonic series is called the fundamental frequency.

The threshold of hearing is defined as 0 dB, which corresponds to the faintest sound that can be heard by the average human ear.

The unit of frequency is Hertz (Hz), which measures cycles per second.

Sound intensity is measured in decibels (dB).

Sound waves are longitudinal waves, where the particle displacement is parallel to the direction of wave propagation.