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Question:
A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of (a) the reflected sound, (b) the transmitted sound? Speed of sound in air is 340 m s^-1 and in water 1486 m s^-1.

Answer:

(a) Frequency of the ultrasonic sound, v = 1000 kHz = 10⁶ Hz

Speed of sound in air, v_a = 340 m/s

The wavelength (v»r) of the reflected sound is given by the relation:

λ_r = v / V

= 340 / 10⁶ = 3.4 x 10^-4 m

(b) Frequency of the ultrasonic sound, v = 1000 kHz = 10⁶ Hz

Speed of sound in water, v_w= 1486 m/s

The wavelength of the transmitted sound is given as:

λ_t = 1486 / 10⁶

= 1.49 × 10^-3 m

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Question:
A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of (a) the reflected sound, (b) the transmitted sound? Speed of sound in air is 340 m s^-1 and in water 1486 m s^-1.

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Question: A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of (a) the reflected sound, (b) the transmitted sound? Speed of sound in air is 340 m s-1 and in water 1486 m s-1.

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Question:
A bat emits ultrasonic sound of frequency 1000 kHz in air. If the sound meets a water surface, what is the wavelength of (a) the reflected sound, (b) the transmitted sound? Speed of sound in air is 340 m s^-1 and in water 1486 m s^-1.