The speed of sound in air and water is 340 m/s and 1420 m/s respectively. If sound waves have a wavelength of 2m in air, then the frequency of the sam

Question

The speed of sound in air and water is 340 m/s and 1420 m/s respectively. If sound waves have a wavelength of 2m in air, then the frequency of the sam

The speed of sound in air and water is 340 m/s and 1420 m/s respectively. If sound waves have a wavelength of 2m in air, then the frequency of the same sound waves in water will be
A. 100 Hz
B. 125 Hz
C. 340 Hz
D. 170 Hz

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

For a certain organ pipe, three successive resonant frequencies are observed at 300 Hz. 420 Hz and 540 Hz. The speed of sound in air is 340 `ms^(-1)`,

2 Answers 4 Views

A bat emits ultrasonic sound a frequency 1000kHz in air. If the sound meets a water surface, what is the wavelength of (a) the reflected sound, (b) th

2 Answers 5 Views

Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected, and (

2 Answers 4 Views

If a source sound of frequency 500 Hz produces waves of wavelength 0.1 m. Then the waves travel a distance of 300 m in the time in the time interval w

2 Answers 4 Views

A bat emits ultrasonic waves of frequency 39 kHz and receives and echo 0.2 s later. If the speed of sound in air is 300 m/s and the speed of electro m

2 Answers 4 Views

Two sources A and B are sounding notes of frequency 680 Hz. A listener moves from A to B with a constant velocity u. If the speed of sound is 340 m/s,

2 Answers 4 Views

A vibrating tuning fork emits sound waves of period `2 xx 10^(-3)` second and wavelength 0.7 m in air. The velocity of sound in air is

2 Answers 5 Views

Two sound waves each of frequency 500Hz are travelling along the same line in opposite direction . If the speed of sound in air is 350 m/s. find the d

2 Answers 4 Views

Speed of sound is air is 340 m/s. The length of air column is 34 cm. The frequency of `5^(th)` overtone of pipe closed at one end is

2 Answers 6 Views

The wavelength of green colour in air and violet colour in water are 5381 Å and 3042 Å respectively. If the wavelength of green colour in water is the

2 Answers 6 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`(lamda_(m))/(lamda_(a)) = (v_(m))/(v_(a)) = (1420)/(340)`
`lamda_(m) = (142)/(34) xx lamda_(a) = (142)/(34) xx 2 = (142)/(17)`
`v_(m) = n lamda_(m) " " :. n = (v_(m))/(lamda_(m)) = (1420)/(142) xx 17`
`n = 170 Hz`

5 views Answered 2023-02-05 15:29