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matrenka [14]
3 years ago
13

A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat make

s. If bats emit a chirp at a frequency of 5.59 104 Hz, and if the speed of sound in air is 343 m/s, what is the smallest insect a bat can detect?Answer in units of mm
Physics
2 answers:
blsea [12.9K]3 years ago
8 0

Answer:

6.136 mm

Explanation:

given,

frequency emitted by the bat = 5.59 x 10⁴ Hz

speed of sound = 343 m/s

smallest insect bat can hear  will be equal to the wavelength  of the sound the bat make.

\lambda = \dfrac{v}{f}

\lambda = \dfrac{343}{5.59\times 10^4}

\lambda = 6.136\times 10^{-3}}

λ = 6.136 mm

so, the smallest size of insect that bat can hear is equal to 6.136 mm

____ [38]3 years ago
6 0
<h2>The smallest insect a bat can detect is of size 6.13 mm</h2>

Explanation:

Velocity = Wavelength x Frequency

v = fλ

Velocity of sound, v = 343 m/s

Frequency, f = 5.59 x 10⁴ Hz

Substituting

             343 =  Wavelength x 5.59 x 10⁴

             Wavelength = 6.13 x 10⁻³ m = 6.13 mm

A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes.

The smallest insect a bat can detect is of size 6.13 mm

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