a bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. if bats emit a chirp at a frequency of 20.2 kHz and the speed of sound in air is 323 m/s, what is the smallest insect a bat can detect? answer in units of mm

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Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.